Cambridge · A Level
Cambridge A Level Biology
Cambridge International AS & A Level Biology (9700). What it covers, how it is assessed, a link to the official syllabus, and the free study material Marlbridge publishes for it.
- Syllabus
- 9700
- Board
- Cambridge
- Qualification
- A Level
- Not your course?
- Change course
Topics and resources
Each topic below is from the official Cambridge document for Cambridge International AS & A Level Biology (9700), with its study guides, revision notes and practice questions together. Everything here is for Cambridge A Level Biology (9700) only.
- Learn with study guides
- Revise with revision notes
- Practise with practice questions
- Test yourself in 10 minutes Five AS topics
- Test yourself in 10 minutes Four A Level topics
- Self-check practice 349 questions with worked answers
- Printable topic checklist Tick off each topic as you revise
Searches topic names and resource titles for this course only.
No Biology (9700) resources match “”.
- Try one shorter word, or check the spelling.
- Try the wording the syllabus uses for the topic, as listed below once you clear the search.
- Some topics have no Marlbridge resource yet; they are still listed.
AS Level
Topics 1–11. Usually studied in the first year, and assessed at AS.
- AS topic 1
Cell structure
Covers The microscope in cell studies, Cells as the basic units of living organisms
Study guides
Revision notes
- AS topic 2
Biological molecules
Covers Testing for biological molecules, Carbohydrates and lipids, Proteins, Water
Study guides
Revision notes
- AS topic 3
Enzymes
Covers Mode of action of enzymes, Factors that affect enzyme action
Study guides
Revision notes
- AS topic 4
Cell membranes and transport
Covers Fluid mosaic membranes, Movement into and out of cells
- AS topic 5
The mitotic cell cycle
Covers Replication and division of nuclei and cells, Chromosome behaviour in mitosis
Study guides
Revision notes
Practice questions
- AS topic 6
Nucleic acids and protein synthesis
Covers Structure of nucleic acids and replication of DNA, Protein synthesis
Study guides
Revision notes
Practice questions
- AS topic 7
Transport in plants
Covers Structure of transport tissues, Transport mechanisms
Study guides
Revision notes
Practice questions
- AS topic 8
Transport in mammals
Covers The circulatory system, Transport of oxygen and carbon dioxide, The heart
Study guides
Revision notes
- AS topic 9
Gas exchange
Covers The gas exchange system
Study guides
Revision notes
Practice questions
- AS topic 10
Infectious diseases
Covers Infectious diseases, Antibiotics
Study guides
Revision notes
- AS topic 11
Immunity
Covers The immune system, Antibodies and vaccination
Study guides
Revision notes
A Level
Topics 12–19. Studied in addition to the AS content for the full A Level.
- A Level topic 12
Energy and respiration
Covers Energy, Respiration
Study guides
Revision notes
- A Level topic 13
Photosynthesis
Covers Photosynthesis as an energy transfer process, Investigation of limiting factors
Study guides
Revision notes
Practice questions
- A Level topic 14
Homeostasis
Covers Homeostasis in mammals, Homeostasis in plants
Study guides
Revision notes
- A Level topic 15
Control and coordination
Covers Control and coordination in mammals, Control and coordination in plants
Study guides
Revision notes
- A Level topic 16
Inheritance
Covers Passage of information from parents to offspring, The roles of genes in determining the phenotype, Gene control
Study guides
Revision notes
- A Level topic 17
Selection and evolution
Covers Variation, Natural and artificial selection, Evolution
Study guides
Revision notes
Practice questions
- A Level topic 18
Classification, biodiversity and conservation
Covers Classification, Biodiversity, Conservation
Revision notes
Practice questions
- A Level topic 19
Genetic technology
Covers Principles of genetic technology, Genetic technology applied to medicine, Genetically modified organisms in agriculture
Study guides
Revision notes
Practice questions
Covering more than one topic
Course guides, exam preparation and pages that span several topics.
Study guides
No study guide for this course yet.
Revision notes
No revision notes for this course yet.
Practice questions
Source: Cambridge International – official AS & A Level Biology (9700) syllabus PDF, Version 1, published September 2022 — For examination in 2025, 2026 and 2027. Verified 2026-08-19. Subtopics are shown where Marlbridge has entered them; a topic may have more in the official document. A topic listed here is part of the syllabus; it does not mean Marlbridge has published material for it. Always check the current syllabus for your examination year.
About this course
- Qualification
- Cambridge A Level Biology
- Spec code
- 9700
- Does Marlbridge teach it?
- Yes — request a free trial class
- Who teaches it?
- Saad Zai · Harris Zaman · Hina Mogul · Ameer Hamza
- Are resources available?
- Yes — 90 published
- Is enrolment open?
- Enquire to join — no online enrolment yet
- Official syllabus
- Cambridge syllabus
- Topic checklist
- Printable 9700 checklist
- Where was this verified?
- 2026-08-19, official Cambridge specification
- Free practice questions?
- Yes — 349 self-check questions
- Free 10-minute diagnostic?
- Yes — Five AS topics · Four A Level topics
Compiled and maintained by the Marlbridge Academic Team, checked against the official Cambridge specification on 2026-08-19.
Spotted something wrong on this page? Report an error — see the corrections policy.
The qualification
Cambridge International AS & A Level Biology (9700)
Marlbridge's summary of the course
Cambridge International AS & A Level Biology develops a set of transferable skills including handling data, practical problem-solving and applying the scientific method, giving learners a strong foundation for progression to higher education in biology or related courses.
The board's own description is on the official Cambridge syllabus page.
Syllabus for exams in 2025, 2026 and 2027 (Version 1). AS Level covers Topics 1-11; A Level covers all 19 topics. Three routes: AS only, A Level staged over two years, or A Level in one series. Five papers: Paper 1 Multiple Choice, Paper 2 AS Structured Questions, Paper 3 Advanced Practical Skills, Paper 4 A Level Structured Questions, Paper 5 Planning, Analysis and Evaluation.
Specifications change between examination series. Always confirm the current syllabus and assessment structure on the Cambridge syllabus page for your examination year.
Assessment structure
Staged qualification
| Component | Duration | Marks | Weighting | Type |
|---|---|---|---|---|
| Paper 1: Multiple Choice | 1h 15m | 40 | 15.5% | Written exam |
| Paper 2: AS Level Structured Questions | 1h 15m | 60 | 23% | Written exam |
| Paper 3: Advanced Practical Skills | 2h | 40 | 11.5% | Practical |
| Paper 4: A Level Structured Questions | 2h | 100 | 38.5% | Written exam |
| Paper 5: Planning, Analysis and Evaluation | 1h 15m | 30 | 11.5% | Written exam |
Source: official Cambridge specification, verified 2026-08-27. Structurally identical scheme to Cambridge 9701 Chemistry and 9702 Physics – independently re-confirmed from Biology's own source PDF (Assessment overview, p.10): same five-paper structure, durations, marks and weighting (15.5%/23%/11.5%/38.5%/11.5% of the full A Level, summing to 100%). Papers 1-3 alone can instead be certificated as a standalone AS Level (weighted 31%/46%/23% of the AS Level in that route, not modeled as a separate record here). All five papers externally assessed.
Questions about this course
How is Cambridge Biology (9700) assessed?
Cambridge Biology (9700) is assessed through: Paper 1 (Multiple Choice) — 1h 15m, 40 marks, 15.5% of the qualification; Paper 2 (AS Level Structured Questions) — 1h 15m, 60 marks, 23% of the qualification; Paper 3 (Advanced Practical Skills) — 2h, 40 marks, 11.5% of the qualification; Paper 4 (A Level Structured Questions) — 2h, 100 marks, 38.5% of the qualification; Paper 5 (Planning, Analysis and Evaluation) — 1h 15m, 30 marks, 11.5% of the qualification. It is a staged qualification. Source: official Cambridge specification, verified 2026-08-27.
What topics does Cambridge A Level Biology (9700) cover?
19 topics in the current syllabus: Cell structure; Biological molecules; Enzymes; Cell membranes and transport; The mitotic cell cycle; Nucleic acids and protein synthesis; Transport in plants; Transport in mammals; Gas exchange; Infectious diseases; Immunity; Energy and respiration; Photosynthesis; Homeostasis; Control and coordination; Inheritance; Selection and evolution; Classification, biodiversity and conservation; Genetic technology. The printable topic checklist lists every topic and subtopic on one page.
Can I get a tutor for Cambridge A Level Biology (9700)?
Yes. Marlbridge teaches Cambridge A Level Biology (9700) live online, one-to-one or in small groups, taught by a named subject teacher from its academy in Lahore, Pakistan. The first trial class is free.
Are there free Cambridge A Level Biology (9700) revision notes and practice questions?
Yes. Marlbridge has published 90 free resources for this course (study guides, practice questions, revision notes, past-paper guidance), free to read with no sign-up.
The subject
Biology teaching and study resources, organised by level and topic.
Biology at other qualifications
These are separate qualifications with different syllabuses and assessments — not different names for the same course. Check which one your school enters you for.
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