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A-LevelBiologyEnzymes9700/12 · May/June 2012 · Q121 Mark

Which graph represents the changes in concentration of a substrate and its product in the same enzyme-catalysed reaction?

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AGraph showing substrate concentration decreasing in a curve and product concentration increasing in a curve, crossing each other.
BGraph showing substrate concentration decreasing in a curve and product concentration increasing in a curve, not crossing each other.
CGraph showing substrate concentration decreasing linearly and product concentration increasing linearly, crossing each other.
DGraph showing substrate concentration decreasing linearly and product concentration increasing linearly, not crossing each other.

✓ Correct answer

A: Graph showing substrate concentration decreasing in a curve and product concentration increasing in a curve, crossing each other.

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About this question

Topic
Enzymes, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, May/June 2012 Paper 1 Variant 2, question 12.

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