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4.2.3 Metabolism
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Metabolism and energy

Metabolism and energy

Diagram comparing anabolic reactions, which use energy to join small molecules, with catabolic reactions, which break large molecules into smaller molecules

Metabolism is the sum of all the chemical reactions in a cell or in the body. These reactions are controlled by enzymes.

4.2.3 Metabolism Lesson

  1. GCSE
  2. /Biology
  3. /4.2.3 Metabolism

Step-by-step lessons on AQA GCSE Biology 4.2.3 Metabolism. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.

Lessons