Subject
Biology
Biology teaching and study resources, organised by level and topic.
Subject overview
The Biology hub gathers the topics, study guides and practice material for this subject in one place. Content is added topic by topic rather than published as empty pages.
Choose your board and qualification
Biology is taught by Marlbridge today, for each qualification below — these are distinct qualifications with different syllabuses and assessments. Pick the one your school enters you for.
- Cambridge A Level Biology Syllabus 9700
- Cambridge IGCSE Biology Syllabus 0610
- Cambridge O Level Biology Syllabus 5090
- Pearson Edexcel A Level Biology Syllabus YBI11
- Pearson Edexcel IGCSE Biology Syllabus 4BI1
- AQA GCSE Biology Syllabus 8461
- AQA A Level Biology Syllabus 7402
- OCR GCSE Biology Syllabus J247
- OCR A Level Biology Syllabus H420
- OxfordAQA IGCSE Biology Syllabus 9201
- OxfordAQA A Level Biology Syllabus 9610
- International Baccalaureate IB Diploma Programme Biology Syllabus DP Biology
Study resources
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Study Guides
AQA A-Level Biology: Eukaryotic and Prokaryotic Cell Structure (7402)
The structure and function of eukaryotic organelles, and the differences between prokaryotic cells, eukaryotic cells and viruses – 3.2.1.1 and 3.2.1.2 of AQA AS and A-Level Biology (7401/7402).
Biology · AQA · AS LEVEL
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Study Guides
A Level Biology: Cell Structure (Cambridge 9700)
The microscope in cell studies, and cells as the basic units of living organisms – the full content of Topic 1 Cell structure for Cambridge AS & A Level Biology 9700, 2025-2027 series.
Biology · Cambridge · AS LEVEL
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Revision Notes
A Level Biology: Cell Structure — Revision Notes
Condensed recall notes on organelles, prokaryotic and eukaryotic cells, microscopy and magnification for Cambridge A Level Biology 9700.
Biology · Cambridge · AS LEVEL
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Study Guides
Edexcel A-Level Biology: Gas Exchange Surfaces, Membranes and Osmosis (YBI11)
Properties of gas exchange surfaces, Fick's Law, cell membrane structure and the fluid mosaic model, and osmosis and membrane transport – outcomes 2.1-2.5 of Pearson Edexcel International A-Level Biology (YBI11), Topic 2.
Biology · Pearson Edexcel · A LEVELS
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Study Guides
Edexcel A Level Biology: Molecules, Transport and Health (YBI11)
Carbohydrates and lipids, the heart and circulation, and the risk factors and evidence behind cardiovascular disease – the full learning outcomes of Topic 1 for Pearson Edexcel International A Level Biology (YBI11), examined as Unit 1.
Biology · Pearson Edexcel · A LEVELS
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Study Guides
OxfordAQA A-Level Biology: The Causes of Disease (9610)
How pathogens cause disease, and the lifestyle risk factors linked to coronary heart disease and cancer – 3.2.1 of OxfordAQA International AS and A-Level Biology (9610), opening Unit 2: Biological Systems and Disease.
Biology · OxfordAQA · AS LEVEL
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Study Guides
OxfordAQA A-Level Biology: The Diversity of Living Organisms (9610)
Species and taxonomy, biodiversity within a community and random sampling in investigations of variation, from Unit 1 of OxfordAQA International AS & A-Level Biology (9610), the first of two units forming the International AS.
Biology · OxfordAQA · AS LEVEL
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Study Guides
AQA A-Level Biology: Biological Molecules (7402)
Monomers and polymers, carbohydrates, lipids, proteins, nucleic acids, ATP, water and inorganic ions – the full content of Topic 1 for AQA AS/A-Level Biology (7401/7402).
Biology · AQA · AS LEVEL
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Revision Notes
AQA A Level Biology: Biological Molecules — Revision Notes
Condensed recall notes on carbohydrates, lipids, proteins, enzymes and food tests for AQA A Level Biology 7402.
Biology · AQA · AS LEVEL
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Revision Notes
AQA A-Level Biology: Eukaryotic and Prokaryotic Cell Structure — Revision Notes
Condensed recall notes on eukaryotic organelles, prokaryotic cell structure and viruses for AQA AS and A-Level Biology (7401/7402), 3.2.1.1 and 3.2.1.2.
Biology · AQA · AS LEVEL
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Study Guides
AQA A-Level Biology: Organisms Exchange Substances With Their Environment (7402)
Surface area to volume ratio, gas exchange, digestion and absorption, and mass transport in animals and plants – the full content of Topic 3.3 for AQA A-Level Biology (7402).
Biology · AQA · AS LEVEL
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Study Guides
AQA GCSE Biology: Cell Biology (8461)
Cell structure, cell division, and transport in cells – the full content of Topic 1 Cell biology for AQA GCSE Biology (8461).
Biology · AQA · GCSE
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Revision Notes
AQA GCSE Biology: Cell Biology — Revision Notes
Condensed recall notes on cell structure, microscopy, mitosis, stem cells and transport for AQA GCSE Biology 8461.
Biology · AQA · GCSE
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Revision Notes
AQA GCSE Biology: Enzymes and the Digestive System — Revision Notes
Condensed recall notes on the cells-tissues-organs hierarchy, digestive enzymes, bile and required practicals 4-5 for AQA GCSE Biology (8461), 4.2.1 and 4.2.2.1.
Biology · AQA · GCSE
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Study Guides
AQA GCSE Biology: Infection and Response (8461)
Pathogens and communicable diseases, human defence systems, vaccination, antibiotics and drug development, plus the Biology-only content on monoclonal antibodies and plant disease – the full content of Topic 4.3 for AQA GCSE Biology (8461).
Biology · AQA · GCSE
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Revision Notes
Edexcel A-Level Biology: Gas Exchange Surfaces, Membranes and Osmosis — Revision Notes
Condensed recall notes on Fick's Law, gas exchange surfaces, the fluid mosaic model and membrane transport for Pearson Edexcel International A-Level Biology (YBI11), outcomes 2.1-2.5.
Biology · Pearson Edexcel · A LEVELS
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Revision Notes
Edexcel A Level Biology: Molecules, Transport and Health — Revision Notes
Condensed recall notes on biological molecules, the circulatory system, atherosclerosis and cardiovascular risk for Pearson Edexcel International A-Level Biology (YBI11).
Biology · Pearson Edexcel · A LEVELS
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Revision Notes
Pearson Edexcel IGCSE Biology: Cell Structure and Biological Molecules — Revision Notes (4BI1)
Condensed revision notes on cell structures and functions, plant vs animal cells, and the three major biological molecules for Pearson Edexcel International GCSE Biology (4BI1).
Biology · Pearson Edexcel · IGCSE
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Study Guides
AQA GCSE Biology: Enzymes and the Digestive System (8461)
Cells, tissues, organs and organ systems, and how digestive enzymes break down food – 4.2.1 and 4.2.2.1 of AQA GCSE Biology (8461), including the lock and key model and required practicals 4 and 5.
Biology · AQA · GCSE
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Revision Notes
How DP Biology Is Assessed: Revision Notes
Condensed recall notes on the assessment structure – papers, weightings and the internal assessment – for IB Diploma Programme Biology.
Biology · International Baccalaureate · IB
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Study Guides
IGCSE Biology: Characteristics and Classification of Living Organisms (Cambridge 0610)
The seven characteristics of life, the binomial naming system and dichotomous keys, and how organisms are placed into kingdoms and groups – the full content of Topic 1 for Cambridge IGCSE Biology 0610, 2026-2028 series.
Biology · Cambridge · IGCSE
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Revision Notes
IGCSE Biology: Characteristics and Classification of Living Organisms — Revision Notes
Condensed recall notes on MRS GREN, the five kingdoms, vertebrate and arthropod groups, and dichotomous keys for Cambridge IGCSE Biology 0610.
Biology · Cambridge · IGCSE
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Study Guides
Pearson Edexcel IGCSE Biology: Cell Structure and Biological Molecules (4BI1)
Cell structures and their functions, plant vs animal cells, and the three major biological molecules – sub-topics (b) and (c) of Topic 2 Structures and Functions in Living Organisms, Pearson Edexcel International GCSE Biology (4BI1).
Biology · Pearson Edexcel · IGCSE
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Study Guides
Edexcel IGCSE Biology: The Nature and Variety of Living Organisms (4BI1)
Characteristics of living organisms and the variety of living organisms (plants, animals, fungi, protoctists, bacteria and pathogens) – the opening topic of Pearson Edexcel International GCSE Biology (4BI1), an untiered, linear qualification.
Biology · Pearson Edexcel · IGCSE
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Revision Notes
Edexcel IGCSE Biology: Nature and Variety of Living Organisms — Revision Notes
Condensed recall notes on the characteristics of life, the five kingdoms, pathogens and levels of organisation for Edexcel International GCSE Biology 4BI1.
Biology · Pearson Edexcel · IGCSE
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Study Guides
OxfordAQA IGCSE Biology: Bioenergetics (9201)
Photosynthesis, exchange and transport in plants, human circulation, digestion, breathing and respiration – the six sub-topics of Bioenergetics in OxfordAQA International GCSE Biology (9201).
Biology · OxfordAQA · IGCSE
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Study Guides
OxfordAQA IGCSE Biology: Organisation (9201)
Cell structure, tissues and organ systems – the opening topic of OxfordAQA International GCSE Biology (9201), largely co-teachable with OxfordAQA International GCSE Combined Science (9204).
Biology · OxfordAQA · IGCSE
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Revision Notes
OxfordAQA IGCSE Biology: Organisation — Revision Notes
Condensed recall notes on Topic 1 Organisation of OxfordAQA International GCSE Biology 9201 (cell structure, tissues, organs and organ systems, and transport in cells), with linked Topic 2 notes on enzymes and digestion, the heart and the lungs.
Biology · OxfordAQA · IGCSE
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Study Guides
OCR A-Level Biology: Development of Practical Skills (H420)
Practical skills assessed in the written examinations and practical skills assessed in the Practical Endorsement – the full content of Module 1 for OCR A-Level Biology A (H420).
Biology · OCR · A LEVELS
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Study Guides
OCR A Level Biology: Foundations in Biology (H420)
Cell structure, biological molecules, and nucleotides and nucleic acids – the opening content of Module 2 for OCR A Level Biology A (H420), Version 4.1.
Biology · OCR · A LEVELS
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Revision Notes
OCR A Level Biology: Development of Practical Skills — Revision Notes
Condensed recall notes on variables, validity, reliability, accuracy, precision and uncertainty for OCR A Level Biology H420.
Biology · OCR · A LEVELS
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Revision Notes
OCR GCSE Biology: Cell Level Systems — Revision Notes
Condensed recall notes on cell structure, microscopy, enzymes, respiration, photosynthesis and DNA for OCR GCSE Biology J247.
Biology · OCR · GCSE
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Study Guides
OCR GCSE Biology: Cell Level Systems (J247)
Cell structures and microscopy, DNA and protein synthesis, enzymes, respiration and the synthesis and breakdown of biological molecules, and photosynthesis, including experiments to investigate it – a study guide to Topic B1 Cell level systems for OCR GCSE Gateway Science Suite Biology A (J247).
Biology · OCR · GCSE
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Study Guides
OCR GCSE Biology: Scaling Up (J247)
Supplying the cell and the challenges of size – the full content of Topic B2 Scaling Up for OCR GCSE (9-1) Biology A (Gateway Science) (J247), including diffusion, osmosis, mitosis, stem cells, and the human circulatory and plant transport systems.
Biology · OCR · GCSE
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Revision Notes
OCR GCSE Biology: Scaling Up — Revision Notes
Condensed recall notes on diffusion/osmosis/active transport, mitosis, stem cells, surface area to volume ratio, and the human and plant transport systems for OCR GCSE (9-1) Biology A Gateway Science (J247), Topic B2.
Biology · OCR · GCSE
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Revision Notes
OxfordAQA A Level Biology: Diversity of Living Organisms — Revision Notes
Condensed recall notes on classification, biodiversity indices and genetic diversity, with natural selection as a Unit 3 forward reference, for OxfordAQA International A Level Biology 9610.
Biology · OxfordAQA · AS LEVEL
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Study Guides
Cell Structure and Organisation
Animal, plant and bacterial cell structure, cell specialisation, and the organisation of cells into tissues and organs, for Cambridge O Level Biology 5090.
Biology · Cambridge · O LEVELS
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Revision Notes
Cell Structure and Organisation: Revision Notes
Condensed recall notes on animal, plant and bacterial cells, specialisation and levels of organisation for Cambridge O Level Biology 5090.
Biology · Cambridge · O LEVELS
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Study Guides
A Level Biology: Biological Molecules (Cambridge 9700)
Testing for biological molecules, carbohydrates and lipids, proteins, and water – the full content of Topic 2 Biological molecules for Cambridge AS & A Level Biology 9700, 2025-2027 series.
Biology · Cambridge · AS LEVEL
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Revision Notes
A Level Biology: Biological Molecules — Revision Notes (Cambridge 9700)
Condensed revision notes on biochemical tests, carbohydrates and lipids, proteins, and water for Cambridge AS & A Level Biology Topic 2 (9700).
Biology · Cambridge · AS LEVEL
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Study Guides
IB Diploma Programme Biology: Syllabus Guide
The four syllabus themes of IB Diploma Programme Biology – Unity and diversity, Form and function, Interaction and interdependence, and Continuity and change – with real sub-topic names, HL-only content marked, and recommended teaching hours, for first assessment 2025.
Biology · International Baccalaureate · IB
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Study Guides
IGCSE Biology: Organisation of the Organism (Cambridge 0610)
Comparing plant, animal and bacterial cell structure, naming six specialised cells and their functions, and calculating magnification from image and actual size – the full content of Topic 2 for Cambridge IGCSE Biology 0610, 2026-2028 series.
Biology · Cambridge · IGCSE
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Revision Notes
IGCSE Biology: Organisation of the Organism — Revision Notes
Condensed recall notes on plant, animal and bacterial cell structure, the six named specialised cells, magnification calculations, and the cell-to-organism hierarchy, for Cambridge IGCSE Biology (0610).
Biology · Cambridge · IGCSE
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Revision Notes
OCR A Level Biology: Foundations in Biology — Revision Notes
Condensed recall notes on cell structure, microscopy, and biological molecules, for OCR A Level Biology A (H420), Module 2 opening sub-topics.
Biology · OCR · A LEVELS
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Revision Notes
OxfordAQA A Level Biology: The Causes of Disease — Revision Notes
Condensed recall notes on pathogens, disease mechanisms and lifestyle risk factors for coronary heart disease and cancer, for OxfordAQA International A-Level Biology (9610), sub-topic 3.2.1.
Biology · OxfordAQA · AS LEVEL
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Revision Notes
OxfordAQA IGCSE Biology: Bioenergetics — Revision Notes
Condensed recall notes on photosynthesis, exchange and transport in plants, circulation, digestion, breathing and respiration, for OxfordAQA International GCSE Biology (9201), Topic 2 Bioenergetics.
Biology · OxfordAQA · IGCSE
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Study Guides
A Level Biology: Enzymes (Cambridge 9700)
The lock-and-key and induced-fit hypotheses, active sites and activation energy, and the factors – temperature, pH, concentration, inhibitors – that affect enzyme-catalysed reaction rates, including Michaelis-Menten kinetics and immobilised enzymes, for Cambridge International AS & A Level Biology 9700.
Biology · Cambridge · AS LEVEL
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Revision Notes
AQA GCSE Biology 8461: Infection and response – Revision Notes
Condensed AQA GCSE Biology 8461 notes on pathogens, the seven named diseases, defences, vaccines, drugs and plant disease, with a self-test.
Biology · AQA · GCSE
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Revision Notes
Pearson Edexcel IGCSE Biology: Reproduction and Inheritance — Revision Notes (4BI1)
Condensed revision notes on sexual and asexual reproduction, DNA and the genome, monohybrid inheritance, mitosis and meiosis, variation and natural selection, for Topic 3 of Pearson Edexcel International GCSE Biology (4BI1).
Biology · Pearson Edexcel · IGCSE
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Revision Notes
IB DP Biology Theme A: Unity and Diversity – Revision Notes
Condensed revision notes on IB Diploma Programme Biology's Theme A – Unity and diversity – water, nucleic acids, cell structure, classification, evolution and conservation – with HL-only content marked and self-test questions.
Biology · International Baccalaureate · IB
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Study Guides
IGCSE Biology: Movement Into and Out of Cells (Cambridge 0610)
Diffusion, osmosis and active transport, with the Core and Supplement split marked exactly as the official syllabus states it – the full content of Topic 3 for Cambridge IGCSE Biology 0610, 2026-2028 series.
Biology · Cambridge · IGCSE
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Study Guides
Edexcel International GCSE Biology: Reproduction and Inheritance (4BI1)
Sexual and asexual reproduction in plants and humans, DNA and the genome, monohybrid inheritance, mitosis and meiosis, variation, mutation and natural selection – Topic 3 of Pearson Edexcel International GCSE Biology (4BI1).
Biology · Pearson Edexcel · IGCSE
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Study Guides
OCR A Level Biology: Exchange and Transport (H420)
Gas exchange, mass transport in animals, and transport in plants – Module 3 of OCR A Level Biology A (H420), distinct from the site's existing guides to Foundations in Biology and Development of Practical Skills.
Biology · OCR · A LEVELS
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Study Guides
Cambridge International AS & A Level Biology 9700: Cell membranes and transport – Study Guide
Study guide for Cambridge 9700 topic 4: the fluid mosaic model, cell signalling, diffusion, osmosis, active transport and SA:V, with worked examples.
Biology · Cambridge · AS LEVEL
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Revision Notes
Cambridge International AS & A Level Biology 9700: Cell membranes and transport – Revision Notes
Condensed revision notes for Cambridge 9700 cell membranes and transport: membrane roles, transport processes, water potential, SA:V and a self-test.
Biology · Cambridge · AS LEVEL
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Revision Notes
A Level Biology: Enzymes — Revision Notes (Cambridge 9700)
Condensed recall notes on enzyme mode of action, lock-and-key vs induced-fit, factors affecting rate, Michaelis-Menten kinetics, inhibitors and immobilised enzymes, for Cambridge International AS & A Level Biology (9700) Topic 3.
Biology · Cambridge · AS LEVEL
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Study Guides
AQA GCSE Biology 8461: Bioenergetics – Study Guide
AQA GCSE Biology 8461 Bioenergetics taught from scratch: photosynthesis, limiting factors, respiration, exercise and metabolism, with worked examples.
Biology · AQA · GCSE
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Revision Notes
AQA GCSE Biology 8461: Bioenergetics – Revision Notes
Condensed AQA GCSE Biology 8461 Bioenergetics notes: equations, limiting factors, inverse square law, respiration and oxygen debt, with a self-test.
Biology · AQA · GCSE
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Study Guides
Edexcel International GCSE Biology 4BI1: Ecology and the environment – Study Guide
Study guide for Edexcel IGCSE Biology 4BI1 Topic 4: quadrats, food chains, energy transfer, carbon and nitrogen cycles and human impacts.
Biology · Pearson Edexcel · IGCSE
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Revision Notes
Edexcel International GCSE Biology 4BI1: Ecology and the environment – Revision Notes
Condensed revision notes for Edexcel IGCSE Biology 4BI1 ecology: key terms, energy transfer, nutrient cycles, pollution and a quick self-test.
Biology · Pearson Edexcel · IGCSE
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Revision Notes
IB DP Biology Theme B: Form and Function – Revision Notes
Condensed revision notes on IB Diploma Programme Biology's Theme B – Form and function – carbohydrates and lipids, proteins, membranes, organelles, cell specialization, gas exchange, transport and adaptation – with HL-only content marked and self-test questions.
Biology · International Baccalaureate · IB
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Study Guides
Cambridge IGCSE Biology 0610: Biological molecules – Study Guide
Study guide for Cambridge IGCSE Biology 0610 topic 4: elements, building blocks, the five food tests and DNA structure, with worked examples.
Biology · Cambridge · IGCSE
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Revision Notes
Cambridge IGCSE Biology 0610: Biological molecules – Revision Notes
Condensed revision notes for Cambridge IGCSE Biology 0610 biological molecules: element lists, food-test colour table, DNA pairing and a self-test.
Biology · Cambridge · IGCSE
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Revision Notes
IGCSE Biology: Movement Into and Out of Cells — Revision Notes
Condensed recall notes on diffusion, osmosis and active transport, with the Core/Supplement split, for Cambridge IGCSE Biology (0610).
Biology · Cambridge · IGCSE
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Study Guides
Biological Molecules
The chemical elements and building blocks of carbohydrates, lipids, proteins and DNA, and the food tests used to identify them, for Cambridge O Level Biology 5090.
Biology · Cambridge · O LEVELS
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Revision Notes
Biological Molecules: Revision Notes
Condensed recall notes on carbohydrates, lipids, proteins, DNA and the food tests for Cambridge O Level Biology 5090.
Biology · Cambridge · O LEVELS
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Study Guides
Cambridge International AS & A Level Biology 9700: The mitotic cell cycle – Study Guide
Study guide for Cambridge 9700 topic 5: chromosome structure, the cell cycle, telomeres, stem cells, tumours and mitosis stages, with worked examples.
Biology · Cambridge · AS LEVEL
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Revision Notes
Cambridge International AS & A Level Biology 9700: The mitotic cell cycle – Revision Notes
Condensed revision notes for Cambridge 9700 mitotic cell cycle: chromosome terms, cycle stages, telomeres, stem cells, tumours and a self-test.
Biology · Cambridge · AS LEVEL
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Study Guides
AQA GCSE Biology 8461: Homeostasis and response – Study Guide
Study guide for AQA GCSE Biology 8461 topic 5: homeostasis, nerves, brain, eye, hormones, kidneys, the menstrual cycle and plant hormones.
Biology · AQA · GCSE
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Revision Notes
AQA GCSE Biology 8461: Homeostasis and response – Revision Notes
Condensed AQA GCSE Biology 8461 notes on homeostasis: reflexes, eye, temperature, insulin, kidneys, ADH, menstrual cycle, auxin, with a self-test.
Biology · AQA · GCSE
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Study Guides
Edexcel International GCSE Biology 4BI1: Use of biological resources – Study Guide
Study guide for Edexcel IGCSE Biology 4BI1 Topic 5: crop yield, yeast and yoghurt, fermenters, selective breeding, genetic modification and cloning.
Biology · Pearson Edexcel · IGCSE
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Revision Notes
Edexcel International GCSE Biology 4BI1: Use of biological resources – Revision Notes
Revision notes for Edexcel IGCSE Biology 4BI1 Topic 5: food production, fermenters, selective breeding, GM and cloning, with a quick self-test.
Biology · Pearson Edexcel · IGCSE
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Study Guides
IB DP Biology Theme A: Unity and Diversity — Study Guide
The full content of IB Diploma Programme Biology's Theme A – water, nucleic acids, origins of cells, cell structure, viruses, classification, evolution and speciation, and conservation of biodiversity – with HL-only content marked.
Biology · International Baccalaureate · IB
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Study Guides
Cambridge IGCSE Biology 0610: Enzymes – Study Guide
Study guide for Cambridge IGCSE Biology 0610 topic 5, Enzymes: catalysts, active sites, temperature and pH, investigations and rate calculations.
Biology · Cambridge · IGCSE
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Revision Notes
Cambridge IGCSE Biology 0610: Enzymes – Revision Notes
Condensed revision notes for Cambridge IGCSE Biology 0610 Enzymes, with Core and Extended answer templates, rate calculations and a self-test.
Biology · Cambridge · IGCSE
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Study Guides
IGCSE Biology: Human Nutrition (Cambridge 0610)
Diet, the alimentary canal, physical and chemical digestion, enzymes and absorption, with the Core and Supplement split marked exactly as the official syllabus states it – the full content of Topic 7 for Cambridge IGCSE Biology 0610, 2026-2028 series.
Biology · Cambridge · IGCSE
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Revision Notes
IGCSE Biology: Human Nutrition — Revision Notes
Condensed recall notes on diet, the digestive system, physical and chemical digestion, and absorption, with the Core/Supplement split, for Cambridge IGCSE Biology (0610).
Biology · Cambridge · IGCSE
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Study Guides
Enzymes
Enzymes as biological catalysts, the lock-and-key model of enzyme specificity, and the effects of temperature and pH on enzyme activity, for Cambridge O Level Biology 5090.
Biology · Cambridge · O LEVELS
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Revision Notes
Enzymes: Revision Notes
Condensed recall notes on enzyme action, the lock-and-key model and the effects of temperature and pH for Cambridge O Level Biology 5090.
Biology · Cambridge · O LEVELS
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Study Guides
Cambridge International AS & A Level Biology 9700: Nucleic acids and protein synthesis – Study Guide
Study guide to nucleotides, DNA structure, semi-conservative replication, transcription, translation and mutation for Cambridge 9700 AS Biology.
Biology · Cambridge · AS LEVEL
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Revision Notes
Cambridge International AS & A Level Biology 9700: Nucleic acids and protein synthesis – Revision Notes
Condensed notes on DNA and RNA structure, replication, the genetic code, transcription, translation and mutations, with a self-test, for Cambridge 9700.
Biology · Cambridge · AS LEVEL
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Study Guides
AQA GCSE Biology 8461: Inheritance, variation and evolution – Study Guide
Study guide for AQA GCSE Biology 8461 topic 6: meiosis, DNA, Punnett squares, inherited disorders, evolution, breeding, cloning and classification.
Biology · AQA · GCSE
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Revision Notes
AQA GCSE Biology 8461: Inheritance, variation and evolution – Revision Notes
Condensed AQA GCSE Biology 8461 notes on meiosis, DNA, genetic crosses, evolution, breeding, GM, cloning and classification, with a self-test.
Biology · AQA · GCSE
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Study Guides
IB DP Biology Theme B: Form and Function — Study Guide
The full content of IB Diploma Programme Biology's Theme B – carbohydrates and lipids, proteins, membranes, organelles, cell specialization, gas exchange and transport, muscle and motility, and adaptation to environment – with HL-only content marked.
Biology · International Baccalaureate · IB
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Study Guides
Cambridge IGCSE Biology 0610: Plant nutrition – Study Guide
Study guide to photosynthesis, limiting factors and leaf structure, with worked practical examples, for Cambridge IGCSE Biology 0610 Core and Extended.
Biology · Cambridge · IGCSE
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Revision Notes
Cambridge IGCSE Biology 0610: Plant nutrition – Revision Notes
Condensed notes on photosynthesis, starch tests, rate experiments, limiting factors and leaf tissues, with a self-test, for Cambridge IGCSE Biology 0610.
Biology · Cambridge · IGCSE
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Study Guides
Cambridge International AS & A Level Biology 9700: Transport in plants – Study Guide
Study guide to xylem and phloem structure, plan diagrams, water pathways, cohesion-tension, xerophytes and phloem mass flow for Cambridge 9700 AS Biology.
Biology · Cambridge · AS LEVEL
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Revision Notes
Cambridge International AS & A Level Biology 9700: Transport in plants – Revision Notes
Condensed notes on xylem, phloem, apoplast and symplast, transpiration, xerophytes and mass flow, with a self-test, for Cambridge 9700 AS Biology.
Biology · Cambridge · AS LEVEL
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Study Guides
AQA GCSE Biology 8461: Ecology – Study Guide
Study guide for AQA GCSE Biology 8461 Topic 7 Ecology: communities, sampling, cycles, decay, biodiversity, trophic levels and food production.
Biology · AQA · GCSE
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Revision Notes
AQA GCSE Biology 8461: Ecology – Revision Notes
Condensed AQA GCSE Biology 8461 Ecology revision notes: key terms, sampling maths, decay, biomass efficiency, human impact and a quick self-test.
Biology · AQA · GCSE
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Study Guides
Cambridge International AS & A Level Biology 9700: Transport in mammals – Study Guide
Blood vessels, blood cells, tissue fluid, oxygen and carbon dioxide transport and the cardiac cycle, taught step by step for Cambridge 9700 AS Biology.
Biology · Cambridge · AS LEVEL
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Revision Notes
Cambridge International AS & A Level Biology 9700: Transport in mammals – Revision Notes
Condensed notes on vessels, tissue fluid, the chloride shift, the Bohr shift and the cardiac cycle, with a self-test, for Cambridge 9700 AS Biology.
Biology · Cambridge · AS LEVEL
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Study Guides
AQA GCSE Biology 8461: Key ideas – Study Guide
Study guide to the nine AQA GCSE Biology 8461 key ideas, showing where each appears in the specification and how to use them in linked answers.
Biology · AQA · GCSE
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Revision Notes
AQA GCSE Biology 8461: Key ideas – Revision Notes
Condensed AQA GCSE Biology 8461 Key ideas notes: the nine big ideas, core equations, linking chains, must-know contrasts and a quick self-test.
Biology · AQA · GCSE
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Study Guides
Cambridge IGCSE Biology 0610: Transport in plants – Study Guide
Study guide to xylem and phloem, water uptake, transpiration, wilting and translocation, with worked examples, for Cambridge IGCSE Biology 0610.
Biology · Cambridge · IGCSE
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Revision Notes
Cambridge IGCSE Biology 0610: Transport in plants – Revision Notes
Condensed revision notes on xylem, phloem, root hairs, transpiration, wilting and sources and sinks, with a self-test, for Cambridge IGCSE Biology 0610.
Biology · Cambridge · IGCSE
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Study Guides
Cambridge International AS & A Level Biology 9700: Gas exchange – Study Guide
The human gas exchange system from scratch: airways, tissues, plan diagrams and alveolar gas exchange, with worked examples, for Cambridge 9700 Biology.
Biology · Cambridge · AS LEVEL
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Revision Notes
Cambridge International AS & A Level Biology 9700: Gas exchange – Revision Notes
Quick-recall notes on airway tissues, their functions, plan diagrams and alveolar gas exchange, with a self-test, for Cambridge 9700 AS Level Biology.
Biology · Cambridge · AS LEVEL
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Study Guides
Cambridge IGCSE Biology 0610: Transport in animals – Study Guide
Study guide teaching circulatory systems, the heart, blood vessels and blood, with Core and Extended content marked, for Cambridge IGCSE Biology 0610.
Biology · Cambridge · IGCSE
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Revision Notes
Cambridge IGCSE Biology 0610: Transport in animals – Revision Notes
Condensed revision notes on the heart, circulation, blood vessels and blood, with a self-test and Extended content flagged, for Cambridge IGCSE 0610.
Biology · Cambridge · IGCSE
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Study Guides
Cambridge International AS & A Level Biology 9700: Infectious diseases – Study Guide
Study guide to cholera, malaria, TB and HIV/AIDS, their transmission and control, penicillin and antibiotic resistance for Cambridge 9700 AS Biology.
Biology · Cambridge · AS LEVEL
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Revision Notes
Cambridge International AS & A Level Biology 9700: Infectious diseases – Revision Notes
Condensed 9700 AS Biology notes on pathogens, transmission, disease control, penicillin and antibiotic resistance, with a self-test and answers.
Biology · Cambridge · AS LEVEL
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Study Guides
Cambridge IGCSE Biology 0610: Diseases and immunity – Study Guide
Study guide to pathogens, transmission, body defences, disease control, immunity, vaccination and cholera, Core and Extended, for Cambridge IGCSE 0610.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Diseases and immunity – Revision Notes
Condensed notes on pathogens, defences, disease control, active and passive immunity, vaccination and cholera, with a self-test, for Cambridge IGCSE 0610.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge International AS & A Level Biology 9700: Immunity – Study Guide
Study guide to phagocytes, antigens, primary and secondary responses, antibodies, monoclonal antibodies and vaccination for Cambridge 9700 AS Biology.
Biology · Cambridge · AS LEVEL
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Revision Notes
Cambridge International AS & A Level Biology 9700: Immunity – Revision Notes
Condensed 9700 AS Biology notes on the immune response, memory cells, antibody structure, monoclonal antibodies and vaccination, with a self-test.
Biology · Cambridge · AS LEVEL
-
Study Guides
Cambridge IGCSE Biology 0610: Gas exchange in humans – Study Guide
Gas exchange surfaces, the breathing system, ventilation, inspired and expired air and breathing in exercise, taught for Cambridge IGCSE Biology 0610.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Gas exchange in humans – Revision Notes
Condensed notes on gas exchange for Cambridge IGCSE Biology 0610: key terms, the ventilation sequence, air composition, a self-test and common mark losses.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge International AS & A Level Biology 9700: Energy and respiration – Study Guide
ATP, RQ, glycolysis, the link reaction, Krebs cycle, oxidative phosphorylation and fermentation taught step by step for Cambridge A Level Biology 9700.
Biology · Cambridge · A LEVEL
-
Revision Notes
Cambridge International AS & A Level Biology 9700: Energy and respiration – Revision Notes
Condensed notes on ATP, RQ, the stages of aerobic respiration, fermentation and rice, with a checked self-test, for Cambridge A Level Biology 9700.
Biology · Cambridge · A LEVEL
-
Study Guides
Cambridge IGCSE Biology 0610: Respiration – Study Guide
Uses of energy, aerobic and anaerobic respiration, the yeast temperature investigation and oxygen debt, taught in steps for Cambridge IGCSE Biology 0610.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Respiration – Revision Notes
Condensed respiration notes for Cambridge IGCSE Biology 0610: equations, uses of energy, yeast investigation, oxygen debt and a self-test with answers.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge International AS & A Level Biology 9700: Photosynthesis – Study Guide
Chloroplasts, pigments, Rf values, photophosphorylation, the Calvin cycle and limiting factors, taught from scratch for Cambridge A Level Biology 9700.
Biology · Cambridge · A LEVEL
-
Revision Notes
Cambridge International AS & A Level Biology 9700: Photosynthesis – Revision Notes
Quick-recall notes on chloroplasts, pigments, Rf, cyclic and non-cyclic photophosphorylation, the Calvin cycle and limiting factors for Cambridge 9700.
Biology · Cambridge · A LEVEL
-
Study Guides
Cambridge IGCSE Biology 0610: Excretion in humans – Study Guide
Study guide for Cambridge IGCSE Biology 0610 topic 13: lungs, kidneys, the nephron, deamination and urea, with Core and Extended content labelled.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Excretion in humans – Revision Notes
Condensed revision notes on excretion for Cambridge IGCSE Biology 0610: kidney, nephron, deamination and urea, with a self-test and common mark losses.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge International AS & A Level Biology 9700: Homeostasis – Study Guide
Study guide for Cambridge 9700 topic 14: negative feedback, the kidney and nephron, ADH, glucagon cell signalling, insulin, biosensors and guard cells.
Biology · Cambridge · A LEVEL
-
Revision Notes
Cambridge International AS & A Level Biology 9700: Homeostasis – Revision Notes
Cambridge 9700 homeostasis revision notes: nephron, ADH, glucagon signalling, insulin, biosensors and stomata, with a self-test and common mark losses.
Biology · Cambridge · A LEVEL
-
Study Guides
Cambridge IGCSE Biology 0610: Coordination and response – Study Guide
Study guide for Cambridge IGCSE Biology 0610 topic 14: nerves, synapses, the eye, hormones, homeostasis and tropisms, with Extended content labelled.
Biology · Cambridge · IGCSE
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Revision Notes
Cambridge IGCSE Biology 0610: Coordination and response – Revision Notes
Revision notes for Cambridge IGCSE Biology 0610 coordination and response: reflexes, the eye, hormones, homeostasis and auxin, plus a self-test.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge International AS & A Level Biology 9700: Control and coordination – Study Guide
Study guide for Cambridge 9700 topic 15: action potentials, synapses, muscle contraction, the Venus fly trap, auxin and gibberellin, with worked examples.
Biology · Cambridge · A LEVEL
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Revision Notes
Cambridge International AS & A Level Biology 9700: Control and coordination – Revision Notes
Cambridge 9700 control and coordination revision notes: neurones, action potentials, synapses, sliding filaments and plant responses, plus a self-test.
Biology · Cambridge · A LEVEL
-
Study Guides
Cambridge IGCSE Biology 0610: Drugs – Study Guide
Study guide to Cambridge IGCSE Biology 0610 topic 15: what a drug is, how antibiotics treat bacterial infections and how resistance such as MRSA develops.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Drugs – Revision Notes
Condensed Cambridge IGCSE Biology 0610 notes on drugs and antibiotics, with the Core/Extended split, a resistance method box and a self-test with answers.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge International AS & A Level Biology 9700: Inheritance – Study Guide
Study guide for Cambridge 9700 A Level Biology topic 16: meiosis, genetic crosses, linkage, epistasis, chi-squared, the lac operon and gibberellin.
Biology · Cambridge · A LEVEL
-
Revision Notes
Cambridge International AS & A Level Biology 9700: Inheritance – Revision Notes
Condensed Cambridge 9700 inheritance notes: meiosis stages, cross types, chi-squared steps, gene-protein links and the lac operon, with a self-test.
Biology · Cambridge · A LEVEL
-
Study Guides
Cambridge IGCSE Biology 0610: Reproduction – Study Guide
Study guide to Cambridge IGCSE Biology 0610 topic 16: asexual and sexual reproduction, flowers, human reproduction, sex hormones and STIs.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Reproduction – Revision Notes
Condensed Cambridge IGCSE Biology 0610 reproduction notes: flowers, gametes, the menstrual cycle, hormones and STIs, with a self-test and answers.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge International AS & A Level Biology 9700: Selection and evolution – Study Guide
Study guide for Cambridge 9700 A Level Biology topic 17: variation, the t-test, natural and artificial selection, Hardy-Weinberg and speciation.
Biology · Cambridge · A LEVEL
-
Revision Notes
Cambridge International AS & A Level Biology 9700: Selection and evolution – Revision Notes
Condensed Cambridge 9700 notes on variation, t-test steps, selection types, Hardy-Weinberg, selective breeding and speciation, with a self-test.
Biology · Cambridge · A LEVEL
-
Study Guides
Cambridge IGCSE Biology 0610: Inheritance – Study Guide
Study guide for Cambridge IGCSE Biology 0610 topic 17: genes and proteins, mitosis, meiosis and monohybrid crosses, with worked genetic diagrams.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Inheritance – Revision Notes
Condensed Cambridge IGCSE Biology 0610 inheritance notes: definitions, genetic diagram method, Core and Extended split and a quick self-test with answers.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge International AS & A Level Biology 9700: Classification, biodiversity and conservation – Study Guide
Study guide for Cambridge 9700 topic 18: species concepts, domains and kingdoms, sampling, Simpson's index, correlation tests and conservation.
Biology · Cambridge · A LEVEL
-
Revision Notes
Cambridge International AS & A Level Biology 9700: Classification, biodiversity and conservation – Revision Notes
Condensed Cambridge 9700 revision notes on classification, sampling, the Lincoln index, Simpson's index, correlation and conservation, with a self-test.
Biology · Cambridge · A LEVEL
-
Study Guides
Cambridge IGCSE Biology 0610: Variation and selection – Study Guide
Study guide for Cambridge IGCSE Biology 0610 topic 18: variation, mutation, adaptive features, natural selection and selective breeding, with examples.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Variation and selection – Revision Notes
Condensed Cambridge IGCSE Biology 0610 notes on variation, mutation, adaptive features and selection, with Core and Extended labels and a self-test.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge International AS & A Level Biology 9700: Genetic technology – Study Guide
Study guide for Cambridge 9700 topic 19: recombinant DNA, enzymes and vectors, PCR, electrophoresis, microarrays, gene therapy, screening and GM crops.
Biology · Cambridge · A LEVEL
-
Revision Notes
Cambridge International AS & A Level Biology 9700: Genetic technology – Revision Notes
Condensed Cambridge 9700 genetic technology notes: gene transfer tools, PCR, electrophoresis, microarrays, medicine and GM crops, with a self-test.
Biology · Cambridge · A LEVEL
-
Study Guides
Cambridge IGCSE Biology 0610: Organisms and their environment – Study Guide
Study guide for Cambridge IGCSE Biology 0610 topic 19: energy flow, food webs, ecological pyramids, carbon and nitrogen cycles, and population growth.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Organisms and their environment – Revision Notes
Condensed revision notes for 0610 Organisms and their environment: key definitions, pyramids, energy efficiency, nutrient cycles and a quick self-test.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge IGCSE Biology 0610: Human influences on ecosystems – Study Guide
Study guide for Cambridge IGCSE Biology 0610 topic 20: food production, habitat destruction, pollution, eutrophication and conservation, with examples.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Human influences on ecosystems – Revision Notes
Condensed revision notes for 0610 Human influences on ecosystems: food supply, deforestation, pollution, eutrophication steps, conservation and self-test.
Biology · Cambridge · IGCSE
-
Study Guides
Cambridge IGCSE Biology 0610: Biotechnology and genetic modification – Study Guide
Study guide to Cambridge IGCSE Biology 0610 topic 21: bacteria in biotechnology, yeast, enzymes, fermenters and genetic modification, Core and Extended.
Biology · Cambridge · IGCSE
-
Revision Notes
Cambridge IGCSE Biology 0610: Biotechnology and genetic modification – Revision Notes
Condensed revision notes for Cambridge IGCSE Biology 0610 topic 21, biotechnology and GM, with Core/Extended labels, a self-test and common mark losses.
Biology · Cambridge · IGCSE
-
Subject Guides
IB Diploma Programme Biology: Subject Overview
An overview of IB Diploma Programme Biology – the study of life and living systems, its emphasis on scientific inquiry, and the aims shared across all three DP sciences subjects.
Biology · International Baccalaureate · IB
Practice resources
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Practice Questions
A Level Biology: Cell Structure — Practice Questions
Original exam-style practice questions with full worked answers on organelles, microscopy, magnification, viruses and cell comparison for Cambridge A Level Biology 9700.
Biology · Cambridge · AS LEVEL
-
Practice Questions
A Level Biology: Enzymes — Practice Questions
Original exam-style practice questions with full worked answers on enzyme mode of action, factors affecting rate, Michaelis-Menten kinetics, inhibitors and immobilised enzymes, for Topic 3 of Cambridge International AS & A Level Biology (9700).
Biology · Cambridge · AS LEVEL
-
Practice Questions
OxfordAQA A Level Biology: The Causes of Disease — Practice Questions
Original exam-style practice questions with full worked answers on pathogens, disease mechanisms, and lifestyle risk factors for coronary heart disease and cancer, for OxfordAQA International A-Level Biology (9610), sub-topic 3.2.1.
Biology · OxfordAQA · AS LEVEL
-
Practice Questions
AQA A Level Biology: Biological Molecules — Practice Questions
Original exam-style practice questions with full worked answers on carbohydrates, proteins, enzymes and food tests for AQA A Level Biology 7402.
Biology · AQA · AS LEVEL
-
Practice Questions
AQA A Level Biology: Eukaryotic and Prokaryotic Cell Structure — Practice Questions
Original exam-style practice questions with full worked answers on eukaryotic organelles, prokaryotic cell structure and viruses for AQA AS and A-Level Biology (7401/7402), 3.2.1.1 and 3.2.1.2.
Biology · AQA · AS LEVEL
-
Practice Questions
AQA GCSE Biology: Cell Biology — Practice Questions
Original exam-style practice questions with full worked answers on cells, microscopy, mitosis, stem cells and transport for AQA GCSE Biology.
Biology · AQA · GCSE
-
Practice Questions
AQA GCSE Biology: Enzymes and the Digestive System — Practice Questions
Original exam-style practice questions with full worked answers on cells, tissues, organs and organ systems, digestive enzymes, bile, and required practicals 4 and 5 for AQA GCSE Biology (8461), covering 4.2.1 and 4.2.2.1.
Biology · AQA · GCSE
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Exam Preparation
AQA GCSE Biology: Paper-by-Paper Exam Preparation
Paper-by-paper exam preparation for AQA GCSE Biology 8461 – Foundation/Higher tier strategy, required-practicals revision, AO1/AO2/AO3 balance, a worked six-mark answer and a checklist.
Biology · AQA · GCSE
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Past Papers
Cambridge International AS & A Level Biology (9700) Past Papers: Grade Thresholds and Examiner Report Notes
9700 Biology past papers guide: grade thresholds and examiner report notes for every March, June and November series from 2021 to 2024.
Biology · Cambridge · A LEVELS
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Past Papers
Cambridge IGCSE Biology (0610) Past Papers: Grade Thresholds and Examiner Report Notes
Cambridge IGCSE Biology 0610 past papers guide: grade thresholds and examiner report notes for the March, June and November series, 2022 to 2024.
Biology · Cambridge · IGCSE
-
Practice Questions
Edexcel A Level Biology: Gas Exchange Surfaces, Membranes and Osmosis — Practice Questions
Original exam-style practice questions with full worked answers on Fick's Law, gas exchange surfaces, cell membrane structure, osmosis and membrane transport mechanisms for Pearson Edexcel International A-Level Biology (YBI11), outcomes 2.1-2.5.
Biology · Pearson Edexcel · A LEVELS
-
Practice Questions
Edexcel A Level Biology: Molecules, Transport and Health — Practice Questions
Original exam-style practice questions with full worked answers on biological molecules, the heart, atherosclerosis and cardiovascular risk.
Biology · Pearson Edexcel · A LEVELS
-
Practice Questions
Pearson Edexcel IGCSE Biology: Cell Structure and Biological Molecules — Practice Questions (4BI1)
Original practice questions with full worked answers on cell structures, plant vs animal cells, biological molecules and enzymes, for Pearson Edexcel International GCSE Biology (4BI1).
Biology · Pearson Edexcel · IGCSE
-
Exam Preparation
IB DP Biology: Paper-by-Paper Exam Preparation
Paper-by-paper exam preparation for IB Diploma Programme Biology – how to allocate time across Paper 1 and Paper 2, a worked practice scenario, and a before/during-exam checklist.
Biology · International Baccalaureate · IB
-
Practice Questions
IGCSE Biology: Characteristics and Classification of Living Organisms — Practice Questions
Original exam-style practice questions with full worked answers on MRS GREN, the five kingdoms, vertebrates and dichotomous keys for Cambridge IGCSE Biology 0610.
Biology · Cambridge · IGCSE
-
Practice Questions
Edexcel IGCSE Biology: Nature and Variety of Living Organisms — Practice Questions
Original exam-style practice questions with full worked answers on characteristics of living organisms, the five kingdoms, viruses and pathogens.
Biology · Pearson Edexcel · IGCSE
-
Practice Questions
OxfordAQA IGCSE Biology: Organisation — Practice Questions
Original exam-style practice questions with full worked answers on cell structure, tissues, organs and transport in cells for OxfordAQA International GCSE Biology (9201).
Biology · OxfordAQA · IGCSE
-
Practice Questions
OCR A Level Biology: Development of Practical Skills — Practice Questions
Original exam-style practice questions with full worked answers on variables, reliability, validity, error, uncertainty and graph choice for OCR A Level Biology.
Biology · OCR · A LEVELS
-
Practice Questions
OCR GCSE Biology: Cell Level Systems — Practice Questions
Original exam-style practice questions with full worked answers on cell structure, enzymes, respiration and photosynthesis for OCR GCSE Biology.
Biology · OCR · GCSE
-
Practice Questions
OCR GCSE Biology: Scaling Up — Practice Questions
Original exam-style practice questions with full worked answers on diffusion, osmosis, active transport, surface area to volume ratio, and the human and plant transport systems for OCR GCSE (9-1) Biology A Gateway Science (J247), Topic B2 Scaling Up.
Biology · OCR · GCSE
-
Practice Questions
OxfordAQA A Level Biology: Diversity of Living Organisms — Practice Questions
Original exam-style practice questions with full worked answers on classification, biodiversity indices, genetic diversity and species concepts.
Biology · OxfordAQA · AS LEVEL
-
Practice Questions
OxfordAQA IGCSE Biology: Bioenergetics — Practice Questions (9201)
Original exam-style practice questions with full worked answers on photosynthesis, exchange and transport in plants, human circulation, digestion, breathing and respiration for OxfordAQA International GCSE Biology (9201).
Biology · OxfordAQA · IGCSE
-
Practice Questions
Cell Structure and Organisation: Practice Questions
Original exam-style practice questions with full worked answers on cells, organelles, specialisation and levels of organisation.
Biology · Cambridge · O LEVELS
-
Exam Preparation
AQA A-Level Biology: Paper-by-Paper Exam Preparation
Paper-by-paper exam preparation for AQA A-Level Biology 7402 – why Paper 3 draws on all eight topics, comprehension and essay-writing strategy, practical-skills fluency, a worked answer and a checklist.
Biology · AQA · A LEVELS
-
Practice Questions
AQA GCSE Biology 8461: Infection and response – Practice Questions
Twelve original AQA GCSE Biology 8461 questions on disease, defences, vaccines, drug trials, monoclonal antibodies and plant disease, fully marked.
Biology · AQA · GCSE
-
Exam Preparation
Edexcel International A Level Biology: Unit-by-Unit Exam Preparation Across Six Papers
How the six modular units of Edexcel IAL Biology YBI11 are weighted, why Units 3 and 6 are written practical-skills papers rather than lab assessments, and a worked experimental-evaluation routine.
Biology · Pearson Edexcel · A LEVELS
-
Practice Questions
Pearson Edexcel IGCSE Biology: Reproduction and Inheritance — Practice Questions (4BI1)
Original practice questions with full worked answers covering reproduction, DNA and the genome, monohybrid inheritance, mitosis, meiosis and natural selection, for Topic 3 of Pearson Edexcel International GCSE Biology (4BI1).
Biology · Pearson Edexcel · IGCSE
-
Practice Questions
IGCSE Biology: Organisation of the Organism — Practice Questions
Exam-style questions with full worked answers on plant, animal and bacterial cell structure, specialised cells, the organisation hierarchy, and magnification calculations, for Cambridge IGCSE Biology (0610) Topic 2.
Biology · Cambridge · IGCSE
-
Exam Preparation
OCR A Level Biology A: Preparing for Two 100-Mark Papers and a Synoptic Third
How OCR A Level Biology H420's 37/37/26 paper weighting works, why Paper 3 is whole-specification and synoptic, where the separately reported Practical Endorsement fits, and a worked unfamiliar-data routine.
Biology · OCR · A LEVELS
-
Practice Questions
OCR A Level Biology: Foundations in Biology — Practice Questions
Original exam-style practice questions with full worked answers on microscopy and magnification, cell structure, biological molecules, and nucleic acids, for OCR A Level Biology A (H420).
Biology · OCR · A LEVELS
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Exam Preparation
OCR GCSE Biology A (Gateway): Tier Choice and Which Topics Sit on Which Paper
How OCR GCSE Biology J247's two papers per tier divide the specification, why topic 7 practical skills appear on both, the assumed-knowledge rule on Paper 2, and a worked practical-evaluation routine.
Biology · OCR · GCSE
-
Exam Preparation
OxfordAQA International A-Level Biology: Five Papers, Ten Required Practicals
How OxfordAQA International A-Level Biology 9610's five equally weighted papers work, why the ten required practicals are examined in writing, cashable AS awards, and a worked experimental-design routine.
Biology · OxfordAQA · A LEVELS
-
Exam Preparation
OxfordAQA International GCSE Biology: Two Papers That Can Each Assess Anything
Why either OxfordAQA International GCSE Biology 9201 paper can assess any part of the specification, how practical knowledge is examined without a practical exam, and a worked unfamiliar-organism routine.
Biology · OxfordAQA · IGCSE
-
Practice Questions
A Level Biology: Cell membranes and transport — Practice Questions (Cambridge 9700)
Original exam-style questions with full worked answers on proton cotransport, evidence for active transport, exocytosis, water potential, plasmodesmata and the fluid mosaic membrane, for Cambridge International AS & A Level Biology (9700).
Biology · Cambridge · AS LEVEL
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Practice Questions
AQA GCSE Biology 8461: Bioenergetics – Practice Questions
Eleven original AQA GCSE Biology 8461 Bioenergetics questions on photosynthesis rate, limiting factors, respiration and exercise, with marked answers.
Biology · AQA · GCSE
-
Practice Questions
Edexcel International GCSE Biology 4BI1: Ecology and the environment – Practice Questions
Twelve original Edexcel IGCSE Biology 4BI1 ecology questions with mark-by-mark answers on quadrats, energy transfer, cycles and pollution.
Biology · Pearson Edexcel · IGCSE
-
Practice Questions
IB DP Biology Theme A: Unity and Diversity — Practice Questions
Original practice questions with full worked answers covering water, nucleic acids, cell structure, viruses, classification and cladistics, evolution and speciation, conservation of biodiversity and the origins of cells, plus a general correlation-versus-causation data-skills question, for IB Diploma Programme Biology Theme A.
Biology · International Baccalaureate · IB
-
Practice Questions
Cambridge IGCSE Biology 0610: Biological molecules – Practice Questions
Original practice questions with marked answers on Cambridge IGCSE Biology 0610 biological molecules: elements, food tests and DNA base pairing.
Biology · Cambridge · IGCSE
-
Practice Questions
Biological Molecules: Practice Questions
Original exam-style practice questions with full worked answers on carbohydrates, proteins, lipids and food tests.
Biology · Cambridge · O LEVELS
-
Practice Questions
Cambridge International AS & A Level Biology 9700: The mitotic cell cycle – Practice Questions
Original practice questions with marked answers on Cambridge 9700 mitotic cell cycle: chromosomes, interphase, telomeres, tumours and mitosis stages.
Biology · Cambridge · AS LEVEL
-
Practice Questions
A Level Biology: Biological Molecules — Practice Questions (Cambridge 9700)
Original exam-style practice questions with full worked answers on biochemical tests, carbohydrates, lipids, proteins and water for Cambridge International AS & A Level Biology (9700) Topic 2.
Biology · Cambridge · AS LEVEL
-
Practice Questions
AQA GCSE Biology 8461: Homeostasis and response – Practice Questions
Twelve original AQA GCSE Biology 8461 questions on reflexes, the eye, diabetes, kidneys, hormones, IVF and auxin, with mark-by-mark answers.
Biology · AQA · GCSE
-
Practice Questions
Edexcel International GCSE Biology 4BI1: Use of biological resources – Practice Questions
Twelve original Edexcel IGCSE Biology 4BI1 questions on crop yield, yeast, fermenters, breeding, GM and cloning, with mark-by-mark answers.
Biology · Pearson Edexcel · IGCSE
-
Practice Questions
IGCSE Biology: Enzymes — Practice Questions (Cambridge 0610)
Original exam-style questions with full worked answers on catalysts, enzyme action, the effect of temperature and pH, kinetic energy and collisions, and enzyme specificity, for Cambridge IGCSE Biology (0610).
Biology · Cambridge · IGCSE
-
Practice Questions
IGCSE Biology: Movement Into and Out of Cells — Practice Questions (Cambridge 0610)
Original exam-style practice questions with full worked answers on diffusion, osmosis and active transport, with Core and Supplement content marked, for Cambridge IGCSE Biology (0610) Topic 3.
Biology · Cambridge · IGCSE
-
Practice Questions
Enzymes: Practice Questions
Original exam-style practice questions with full worked answers on enzyme action, temperature, pH, denaturation and enzyme uses.
Biology · Cambridge · O LEVELS
-
Practice Questions
Cambridge International AS & A Level Biology 9700: Nucleic acids and protein synthesis – Practice Questions
Original exam-style questions with marked answers on DNA replication, transcription, translation and gene mutation for Cambridge 9700 AS Biology.
Biology · Cambridge · AS LEVEL
-
Practice Questions
AQA GCSE Biology 8461: Inheritance, variation and evolution – Practice Questions
Twelve original AQA GCSE Biology 8461 questions on meiosis, DNA, Punnett squares, natural selection, GM, cloning and Darwin, with worked answers.
Biology · AQA · GCSE
-
Practice Questions
IGCSE Biology: Human Nutrition — Practice Questions
Exam-style questions with full worked answers on diet, the digestive system, physical and chemical digestion, and absorption, for Cambridge IGCSE Biology (0610) Topic 7.
Biology · Cambridge · IGCSE
-
Practice Questions
IGCSE Biology: Plant nutrition — Practice Questions (Cambridge 0610)
Original exam-style questions with full worked answers on mineral ions, uses of carbohydrates, the photosynthesis equation, hydrogencarbonate indicator experiments and limiting factors, for Cambridge IGCSE Biology (0610).
Biology · Cambridge · IGCSE
-
Practice Questions
Cambridge International AS & A Level Biology 9700: Transport in plants – Practice Questions
Original exam-style questions with marked answers on xylem, phloem, water pathways, transpiration and translocation for Cambridge 9700 AS Biology.
Biology · Cambridge · AS LEVEL
-
Practice Questions
AQA GCSE Biology 8461: Ecology – Practice Questions
Twelve original AQA GCSE Biology 8461 Ecology questions on sampling, cycles, decay, biomass, human impact and food production, with marked answers.
Biology · AQA · GCSE
-
Practice Questions
IB DP Biology Theme B: Form and Function — Practice Questions
Original practice questions with full worked answers covering macromolecules, proteins, membrane transport, organelles, cell specialization, gas exchange and adaptation, for IB Diploma Programme Biology Theme B.
Biology · International Baccalaureate · IB
-
Practice Questions
A Level Biology: Transport in mammals — Practice Questions (Cambridge 9700)
Original exam-style questions with full worked answers on identifying capillaries, unit conversions, capillary structure and function, veins adapting to arterial pressure, artery and vein walls, and oxygen carried by haemoglobin, for Cambridge International AS & A Level Biology (9700).
Biology · Cambridge · AS LEVEL
-
Practice Questions
AQA GCSE Biology 8461: Key ideas – Practice Questions
Twelve original linked questions on the AQA GCSE Biology 8461 key ideas, from enzymes and exchange to cycling and evolution, with marked answers.
Biology · AQA · GCSE
-
Practice Questions
IGCSE Biology: Transport in plants — Practice Questions (Cambridge 0610)
Original exam-style questions with full worked answers on xylem and phloem, water uptake, transpiration pull, factors affecting transpiration, and translocation from sources to sinks, for Cambridge IGCSE Biology (0610).
Biology · Cambridge · IGCSE
-
Practice Questions
Cambridge International AS & A Level Biology 9700: Gas exchange – Practice Questions
Twelve original gas exchange questions with fully worked, mark-by-mark answers and examiner insights, for Cambridge 9700 AS & A Level Biology.
Biology · Cambridge · AS LEVEL
-
Practice Questions
Cambridge IGCSE Biology 0610: Transport in animals – Practice Questions
Twelve original questions with mark-by-mark answers on circulation, the heart, blood vessels and blood, Core and Extended, for Cambridge IGCSE Biology.
Biology · Cambridge · IGCSE
-
Practice Questions
A Level Biology: Infectious diseases — Practice Questions (Cambridge 9700)
Original exam-style questions with full worked answers on naming pathogens, HIV/AIDS and anti-retroviral therapy, how penicillin works, the spread of tuberculosis and antibiotic resistance, for Cambridge International AS & A Level Biology (9700).
Biology · Cambridge · AS LEVEL
-
Practice Questions
Cambridge IGCSE Biology 0610: Diseases and immunity – Practice Questions
Twelve original questions with full answers on transmission, defences, vaccination, active and passive immunity and cholera, for Cambridge IGCSE 0610.
Biology · Cambridge · IGCSE
-
Practice Questions
A Level Biology: Immunity — Practice Questions (Cambridge 9700)
Original exam-style questions with full worked answers on phagocytosis, a live attenuated oral vaccine, memory cells and long-term immunity, types of immunity, T-helper cells and antibody structure, for Cambridge International AS & A Level Biology (9700).
Biology · Cambridge · AS LEVEL
-
Practice Questions
Cambridge IGCSE Biology 0610: Gas exchange in humans – Practice Questions
Twelve original gas exchange questions with fully worked, mark-by-mark answers and Core or Extended labels, for Cambridge IGCSE Biology 0610.
Biology · Cambridge · IGCSE
-
Practice Questions
A Level Biology: Energy and respiration — Practice Questions (Cambridge 9700)
Original exam-style questions with full worked answers on how carbon dioxide leaves a mitochondrion, oxidative phosphorylation and chemiosmosis, the effects of cyanide and of an uncoupler, respiratory quotient, and anaerobic respiration in yeast, for Cambridge International AS & A Level Biology (9700).
Biology · Cambridge · A LEVEL
-
Practice Questions
IGCSE Biology: Respiration — Practice Questions (Cambridge 0610)
Original exam-style questions with full worked answers on uses of energy, aerobic and anaerobic respiration equations, yeast respiration investigations, the effect of temperature and oxygen debt, for Cambridge IGCSE Biology (0610).
Biology · Cambridge · IGCSE
-
Practice Questions
Cambridge International AS & A Level Biology 9700: Photosynthesis – Practice Questions
Eleven original photosynthesis questions with marked worked answers: Rf, photophosphorylation, Calvin cycle and limiting factors, for Cambridge 9700.
Biology · Cambridge · A LEVEL
-
Practice Questions
Cambridge IGCSE Biology 0610: Excretion in humans – Practice Questions
Eleven original excretion questions for Cambridge IGCSE Biology 0610, from the urinary system to the nephron and deamination, with marked answers.
Biology · Cambridge · IGCSE
-
Practice Questions
A Level Biology: Homeostasis — Practice Questions (Cambridge 9700)
Original exam-style questions with full worked answers on osmoreceptors and ADH, percentage change in urine flow, aquaporins in the collecting duct, negative feedback and glucagon, glucose test strips and biosensors, and abscisic acid and stomatal closure, for Cambridge International AS & A Level Biology (9700).
Biology · Cambridge · A LEVEL
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Practice Questions
IGCSE Biology: Coordination and response — Practice Questions (Cambridge 0610)
Original exam-style questions with full worked answers on sense organs, reflex arcs, synapses, accommodation, rods and cones and the pupil reflex, for Cambridge IGCSE Biology (0610).
Biology · Cambridge · IGCSE
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Practice Questions
A Level Biology: Control and coordination — Practice Questions (Cambridge 9700)
Original exam-style questions with full worked answers on neurone types and myelin, saltatory conduction, conduction speed, voltage-gated and ligand-gated channels at a cholinergic synapse, an insecticide that inhibits acetylcholinesterase, and hyperpolarisation and the threshold potential, for Cambridge International AS & A Level Biology (9700).
Biology · Cambridge · A LEVEL
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Practice Questions
Cambridge IGCSE Biology 0610: Drugs – Practice Questions
Original practice questions for Cambridge IGCSE Biology 0610 topic 15 (Drugs), covering antibiotics, resistance data and MRSA, with mark-by-mark answers.
Biology · Cambridge · IGCSE
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Practice Questions
A Level Biology: Inheritance — Practice Questions (Cambridge 9700)
Original exam-style questions with full worked answers on multiple alleles, codominance and dominance hierarchies, setting out genetic crosses, autosomal versus sex-linked inheritance, the chi-squared test, gene–protein–phenotype links in albinism, and gibberellin and DELLA proteins, for Cambridge International AS & A Level Biology (9700).
Biology · Cambridge · A LEVEL
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Practice Questions
IGCSE Biology: Reproduction — Practice Questions (Cambridge 0610)
Original exam-style questions with full worked answers on asexual and sexual reproduction, the female reproductive system, gametes, the amniotic sac, the placenta and the advantages of sexual reproduction, for Cambridge IGCSE Biology (0610).
Biology · Cambridge · IGCSE
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Practice Questions
Cambridge International AS & A Level Biology 9700: Selection and evolution – Practice Questions
12 original Cambridge 9700 questions on variation, t-tests, Hardy-Weinberg, selection, breeding and speciation, with fully worked mark-by-mark answers.
Biology · Cambridge · A LEVEL
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Practice Questions
IGCSE Biology: Inheritance — Practice Questions (Cambridge 0610)
Original exam-style questions with full worked answers on genes and alleles, sex determination, monohybrid crosses, sex linkage, mitosis and meiosis, and stem cells and gene expression, for Cambridge IGCSE Biology (0610).
Biology · Cambridge · IGCSE
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Practice Questions
Cambridge International AS & A Level Biology 9700: Classification, biodiversity and conservation – Practice Questions
Original Cambridge 9700 practice questions on classification, sampling, Lincoln and Simpson's indices, correlation and conservation, with marked answers.
Biology · Cambridge · A LEVEL
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Practice Questions
Cambridge IGCSE Biology 0610: Variation and selection – Practice Questions
Original Cambridge IGCSE Biology 0610 questions on variation, mutation, adaptive features and selection, with marked worked answers and examiner insights.
Biology · Cambridge · IGCSE
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Practice Questions
Cambridge International AS & A Level Biology 9700: Genetic technology – Practice Questions
Original Cambridge 9700 practice questions on gene transfer, PCR, gel electrophoresis, microarrays, gene therapy and GM crops, with mark-by-mark answers.
Biology · Cambridge · A LEVEL
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Practice Questions
Cambridge IGCSE Biology 0610: Organisms and their environment – Practice Questions
Original practice questions with mark-by-mark answers on food webs, energy transfer, carbon and nitrogen cycles and populations for IGCSE Biology 0610.
Biology · Cambridge · IGCSE
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Practice Questions
Cambridge IGCSE Biology 0610: Human influences on ecosystems – Practice Questions
Original IGCSE Biology 0610 practice questions on food supply, deforestation, pollution, eutrophication and conservation, with mark-by-mark answers.
Biology · Cambridge · IGCSE
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Practice Questions
Cambridge IGCSE Biology 0610: Biotechnology and genetic modification – Practice Questions
Original practice questions with marked answers on biotechnology and genetic modification for Cambridge IGCSE Biology 0610 topic 21, Core and Extended.
Biology · Cambridge · IGCSE
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Questions
What does the Biology hub cover?
Biology across five boards and the IB: Cambridge IGCSE (0610), O Level (5090) and International AS & A Level (9700); Pearson Edexcel International GCSE (4BI1) and International A Level (YBI11); AQA GCSE (8461) and A-level (7402); OCR GCSE (J247) and A Level (H420); OxfordAQA International GCSE (9201) and International AS and A-level (9610); and IB Diploma Programme Biology. Study material is organised by topic for each of these, and more is added as it is written.
Are Marlbridge's Biology study guides free to use?
Yes. Study material on Marlbridge is free to read for anyone preparing for an exam, and free for schools and teachers to use with their classes — no licence, account or attribution required.
Which exam board does this follow?
Cambridge International Education, Pearson Edexcel, AQA, OCR, OxfordAQA and the International Baccalaureate (IB).
Does Marlbridge teach Biology?
Yes, at IGCSE, O Level, GCSE, A Level and IB Diploma Programme. Marlbridge teaches this across Cambridge, Pearson Edexcel, AQA, OCR, OxfordAQA and the IB.
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