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.
Related Biology A Level answers
All answers ▸Endopeptidases and exopeptidases are involved in the hydrolysis of proteins. Name the other type of enzyme required for the complete hydrolysis of proteins to amino acids.
Give one reason as to why is it important that Carbon dioxide (CO2) is removed from the blood ?
Over-watering a plant can result in the soil around a plant's roots becoming saturated with water, reducing the amount of oxygen available to the roots. Using your knowledge of aerobic and anaerobic respiration, explain how over-watering can kill a plant.
Explain why DNA replication is semi-conservative