The rate of an enzyme-controlled reaction is affected by temperature and by substrate concentration.
Compare the effect of increasing temperature with the effect of increasing substrate concentration on the rate of an enzyme-controlled reaction.
In your answer, explain the reasons for each effect.
44 exam-style questions on Edexcel GCSE Biology 1.3 Enzymes, covering 1.3.1 Mechanism of enzyme action, 1.3.2 Denaturation of enzymes, 1.3.3 Factors affecting enzyme activity, and 1.3.4 Measuring energy in food by calorimetry. Each one has a worked solution and a mark scheme showing where the marks go.