What are the most important topics that I should revise?

Below is a list (by no means exhaustive!) of topics you are sure to encounter in A-level biology and are frequently big features in exam papers.

If you are a GCSE student soon to be starting A-level, it would be highly recommended that you have a good understanding of them.

- Size and surface area to volume ratio

- Condensation and hydrolysis

- Diffusion, osmosis and active transport

- The effect of temperature on the rates at which reactions and processes occur

- Enzymes and the factors affecting the rate of enzyme-controlled reactions

- The concept of a species

- DNA and complementary base pairing

Please note: Check your specification; different exam boards place different amounts of focus on certain topics. Your specification is your best friend! You should be referring to it regularly. 

AA
Answered by Amelia A. Biology tutor

13887 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

When a vaccine is given to a person, it leads to the production of antibodies against a disease-causing organism. Describe how. (5 marks)


What is the resting membrane potential and how is it established?


Glucose is filtered out of the blood, but is not found in urine. Explain why glucose is not present in urine


Describe how human gonads are under hormonal control.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning