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A-level Biology

AQA A2 Biology

Welcome to the downloads page for AQA A2 Biology. Here you will find extra resources to help you get ready for the big day, including answers to the exam practice questions and quick quizzes.

Unit 4 Populations and environment

1 The dynamic equilibrium of populations

2 ATP, photosynthesis and respiration

3 Energy transfer and recycling

4 How ecosystems develop

5 Genetics and speciation

Unit 5 Control in cells and organisms

6 Stimulus and response

7 Nerves and muscles

8 Homeostasis and hormones

9 Protein synthesis and its control

10 Gene