AQA A-level Biology questions by topic
AQA A-level Biology (7402) is examined in three written papers, and ALN indexes questions from Papers 1, 2 and 3. Questions are matched to the specification sections they test, from biological molecules and cells to genetics and the control of gene expression, so you can practise one area at a time across several years of papers.
Step-by-step model answers
204 of 204 questions in this course have a model answer that walks through how to earn each mark, not just what the mark scheme lists. More are added paper by paper.
See a real example- 204 questions
- 23 past papers
- 9 exam series, June 2017 to June 2025
- Paper Analysis for 23 of 23 papers
The Free plan includes a daily allowance of questions with their mark schemes. Questions are shown only after you log in.
Topics in this course
Specification headings, with how many ALN questions are matched to each. A question can test more than one heading.
- 3.1 · Biological molecules43 questions
- 3.2 · Cells63 questions
- 3.3 · Organisms exchange substances with their environment33 questions
- 3.4 · Genetic information, variation and relationships between organisms33 questions
- 3.5 · Energy transfers in and between organisms (A-level only)46 questions
- 3.6 · Organisms respond to changes in their internal and external environments (A-level o…51 questions
- 3.7 · Genetics, populations, evolution and ecosystems (A- level only)55 questions
- 3.8 · The control of gene expression (A-level only)35 questions
Most-examined topics
From Paper Analysis: the sub-sections that came up in the largest share of the papers we have analysed. These are past counts, not predictions.
- 3.8.4 · Gene technologies allow the study and alteration of gene function allowing a bett…The control of gene expression (A-level only) · in 9 of 9 analysed Paper 2 papers, about 20 marks when it appears
- 3.6.4 · Homeostasis is the maintenance of a stable internal environment (A-level only)Organisms respond to changes in their internal and external environments (A-level only) · in 9 of 9 analysed Paper 2 papers, about 11 marks when it appears
- 3.6.2 · Nervous coordination (A-level only)Organisms respond to changes in their internal and external environments (A-level only) · in 9 of 9 analysed Paper 2 papers, about 10 marks when it appears
- 3.2.1 · Cell structureCells · in 6 of 6 analysed Paper 1 papers, about 33 marks when it appears
- 3.1.4 · ProteinsBiological molecules · in 6 of 6 analysed Paper 1 papers, about 20 marks when it appears
The full breakdown by specification point, with the questions behind each count, is in Paper Analysis on the Basic and Premium plans.
Model answers by paper
Counts update automatically as papers and model answers are added. Recent papers appear once the exam board has released them publicly.
| Paper | With model answers | Questions | Past papers | In Paper Analysis |
|---|---|---|---|---|
| Paper 1 | 59 (100%) | 59 | 6 | 6 of 6 |
| Paper 2 | 90 (100%) | 90 | 9 | 9 of 9 |
| Paper 3 | 55 (100%) | 55 | 8 | 8 of 8 |