B3 Enzymes

B3 Revision notes in downloadable word format and here are key terms and definitions: Key terms B3

For self-assessment questions, with exercises and discussions, just click on ‘The chemicals of living cells’ (qu.13 onwards) at Biology GCSE & IGCSE Question Bank. A powerpoint (the chemicals of living cells) can be downloaded from the same site here. The s-cool revision site lets you revise the topic, summarizes the topic and tests you on it. GCSE Bitesize has revision pages (that take you through the topic), a test and an activity.

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