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A-level biology revision guide

Want help revising? Would you like to test your knowledge before the exams? Here are the top online resources to help you pass A-level biology in style.


This site takes you through the main subject areas and theories you need to know for AS and A2 level biology. You can then consolidate what you have learned by answering exam style questions and using the print-and-go revision sheets. There is also a busy discussion forum where you can chat to other biology students.

Biology Mad

Another biology website designed for AS and A-level biology students. All the key modules are covered from blood and circulation to hormones and genetic engineering. The link to download past papers and look at examiners reports will be particularly useful for focussed revision.

Biology Innovation

A revision site written by a student. A and AS-level modules are covered in an easily digested and printable format. A range of annotated diagrams and features, such as Youtube links, make each subject interesting and there are further links for even more depth on each subject.


This website provides detailed audio-visual profiles of animal species – the mixture of video footage and text makes it a fascinating place to browse and learn.

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