AQA · A Level
AQA A Level Biology
AQA AS and A-level Biology (7401/7402). What it covers, how it is assessed, a link to the official specification, and the free study material Marlbridge publishes for it.
- Syllabus
- 7402
- Board
- AQA
- Qualification
- A Level
- Not your course?
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Topics and resources
Each topic below is from the official AQA document for AQA AS and A-level Biology (7401/7402), with its study guides, revision notes and practice questions together. Everything here is for AQA A Level Biology (7402) only.
- Learn with study guides
- Revise with revision notes
- Practise with practice questions
Searches topic names and resource titles for this course only.
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- 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 and A-level content
Topics 1–4. Also the subject content of the separate AS qualification. The A-level is linear, so these topics are examined in the A-level papers at the end of the course, together with the A-level-only topics.
- AS topic 1
Biological molecules
Covers Monomers and polymers, Carbohydrates, Lipids, Proteins, Nucleic acids are important information-carrying molecules, ATP, Water, Inorganic ions
Study guides
Revision notes
Practice questions
- Biological Molecules Try questions
- Enzymes and Required Practical 1 (7402) Try questions
- Lipids and Protein Structure (7402) Try questions
- Monomers, Polymers and Carbohydrates (7402) Try questions
- Nucleic Acids, DNA Replication and ATP (7402) Try questions
- Water and Inorganic Ions (7402) Try questions
- AS topic 2
Cells
Covers Structure of eukaryotic cells, Structure of prokaryotic cells and of viruses, Methods of studying cells
Study guides
Revision notes
- AS topic 3
Organisms exchange substances with their environment
Revision notes
No revision notes for this topic yet.
Practice questions
No practice questions for this topic yet.
- AS topic 4
Genetic information, variation and relationships between organisms
Study guides
- Biodiversity, Index of Diversity and Farming (7402) Read guide
- DNA, Genes, Chromosomes and Protein Synthesis (7402) Read guide
- Genetic Diversity, Natural Selection and Required Practical 6 (7402) Read guide
- Mutation and Meiosis (7402) Read guide
- Species, Taxonomy and Investigating Diversity (7402) Read guide
Revision notes
- Biodiversity, Index of Diversity and Farming (7402) Revise topic
- DNA, Genes, Chromosomes and Protein Synthesis (7402) Revise topic
- Genetic Diversity, Natural Selection and Required Practical 6 (7402) Revise topic
- Mutation and Meiosis (7402) Revise topic
- Species, Taxonomy and Investigating Diversity (7402) Revise topic
Practice questions
- Biodiversity, Index of Diversity and Farming (7402) Try questions
- DNA, Genes, Chromosomes and Protein Synthesis (7402) Try questions
- Genetic Diversity, Natural Selection and Required Practical 6 (7402) Try questions
- Mutation and Meiosis (7402) Try questions
- Species, Taxonomy and Investigating Diversity (7402) Try questions
A-level only
Topics 5–8. Not part of the AS.
- A Level topic 5
Energy transfers in and between organisms
Study guides
Revision notes
- A Level topic 6
Organisms respond to changes in their internal and external environments
Study guides
Revision notes
- A Level topic 7
Genetics, populations, evolution and ecosystems
Study guides
Revision notes
- A Level topic 8
The control of gene expression
Study guides
Revision notes
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: AQA – official AS and A-level Biology (7401/7402) specification, live subject-content pages — For first teaching 2015. 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
- AQA A Level Biology
- Spec code
- 7402
- Does Marlbridge teach it?
- Yes — request a free trial class
- Who teaches it?
- Harris Zaman · Hina Mogul · Ameer Hamza
- Are resources available?
- Yes — 86 published
- Is enrolment open?
- Enquire to join — no online enrolment yet
- Official specification
- AQA specification
- Topic checklist
- Printable 7402 checklist
- Where was this verified?
- 2026-08-19, official AQA specification
Compiled and maintained by the Marlbridge Academic Team, checked against the official AQA specification on 2026-08-19.
Spotted something wrong on this page? Report an error — see the corrections policy.
The qualification
AQA AS and A-level Biology (7401/7402)
Marlbridge's summary of the course
AQA A-level Biology develops essential knowledge and understanding of different areas of the subject and how they relate to each other, alongside practical, mathematical and problem-solving skills, providing a foundation for further study or employment.
The board's own description is on the official AQA syllabus page.
First teaching September 2015. Sections 3.1-3.4 form the AS content (also taught in year 1 of the A-level); sections 3.5-3.8 are A-level only.
Specifications change between examination series. Always confirm the current syllabus and assessment structure on the AQA syllabus page for your examination year.
Assessment structure
Linear qualification
| Component | Duration | Marks | Weighting | Type |
|---|---|---|---|---|
| 7402/1: Paper 1 | 2h | 91 | 35% | Written exam |
| 7402/2: Paper 2 | 2h | 91 | 35% | Written exam |
| 7402/3: Paper 3 | 2h | 78 | 30% | Written exam |
Source: official AQA specification, verified 2026-08-28. Directly confirmed against the official AQA specification-at-a-glance page: linear, not tiered, three written papers. Paper 1 (any content from topics 1-4, incl. practical skills): 2h/91marks/35% of A-level – 76 marks short/long answer, 15 marks extended response. Paper 2 (topics 5-8, incl. practical skills): 2h/91marks/35% – 76 marks short/long answer, 15 marks comprehension. Paper 3 (any content from topics 1-8, incl. practical skills): 2h/78marks/30% – 38 marks structured questions incl. practical techniques, 15 marks critical analysis of experimental data, 25 marks essay (choice of two titles). Total 260 marks. First teaching September 2015, first A-level assessment June 2017.
Questions about this course
How is AQA Biology (7402) assessed?
AQA Biology (7402) is assessed through: 7402/1 (Paper 1) — 2h, 91 marks, 35% of the qualification; 7402/2 (Paper 2) — 2h, 91 marks, 35% of the qualification; 7402/3 (Paper 3) — 2h, 78 marks, 30% of the qualification. It is a linear qualification. Source: official AQA specification, verified 2026-08-28.
What topics does AQA A Level Biology (7402) cover?
8 topics in the current syllabus: Biological molecules; Cells; Organisms exchange substances with their environment; Genetic information, variation and relationships between organisms; Energy transfers in and between organisms; Organisms respond to changes in their internal and external environments; Genetics, populations, evolution and ecosystems; The control of gene expression. The printable topic checklist lists every topic and subtopic on one page.
Can I get a tutor for AQA A Level Biology (7402)?
Yes. Marlbridge teaches AQA A Level Biology (7402) 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 AQA A Level Biology (7402) revision notes and practice questions?
Yes. Marlbridge has published 86 free resources for this course (study guides, practice questions, revision notes, exam preparation guides), 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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