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1.3 Enzymes

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Question 7
F

An enzyme breaks down the same mass of substrate in each of two tests.

The time taken is 80 s in test P and 20 s in test Q.

Which statement compares the mean rates correctly?

[1]
A

The rate in P is four times the rate in Q.

B

The rate in Q is two times the rate in P.

C

The rate in Q is four times the rate in P.

D

The rate in P is two times the rate in Q.

Markscheme

1.3 Enzymes Questions

  1. GCSE
  2. /Biology
  3. /1.3 Enzymes

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.

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