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A-LevelBiologyEnzymes9700/12 · Oct/Nov 2018 · Q151 Mark

The table shows the Michaelis-Menten constant, K_m, for three enzymes. Which interpretation of the information is correct?

AEnzyme C has a V_max which is half that of enzyme P.

BEnzyme C will reach V_max in the shortest time interval.

CEnzyme F has the greatest affinity for its substrate.

DEnzyme P has a V_max of 6.0 × 10³ mmoldm⁻³.

✓ Correct answer

C: Enzyme F has the greatest affinity for its substrate.

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About this question

Topic: Enzymes, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2018 Paper 1 Variant 2, question 15.

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