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O-LevelBiologyEnzymes5090/11 · May/June 2025 · Q81 Mark

The diagram shows an enzyme molecule. Which diagram shows the substrate molecule for this enzyme?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

ADiagram A

BDiagram B

CDiagram C

DDiagram D

✓ Correct answer

A: Diagram A

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About this question

Topic: Enzymes, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2025 Paper 1 Variant 1, question 8.

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