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. 

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