This resource includes revision quizzes covering all the content required for modules B1 and B4 of OCR GCSE Biology. Answers to the B1 quiz and half of the B4 quiz are also given. N.B. these have been made for the 2012 specification which is outdated. However, the science involved may still be relevant to the new syllabus.

This A-level handout describes and explains the biochemical tests for reducing and non-reducing sugars, lipids, proteins, and starch. Explanations of analytical techniques are also included, such as paper and thin layer chromatography and the use of colorimeters.