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1.3 Enzymes

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123
Question 2
F

The Figure shows how an enzyme breaks down a substrate molecule.

Figure

image

a.

Name part X.

[1]
b.

Name structure Y.

[1]
c.

Enzymes are biological catalysts. State what is meant by a catalyst.

[1]
d.

Name the type of biological molecule that enzymes are made of.

[1]
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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