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The questions in this quiz are suitable for GCSE biology students studying molecules of life, structures of carbohydrates, proteins and lipids, enzymes, and the liver and digestion.

If you struggled with the quiz, don't panic - we've got you! You can revise by clicking the links below.

To brush up on your GCSE digestion knowledge, click on the link to your awarding body specific revision:

Click the links below to try our GCSE biology exam-style or quick-fire quizzes and test your skills and knowledge: