A-LevelBiologyEnzymes9700/12 · Oct/Nov 2015 · Q131 Mark
The diagram shows the mass of product formed over time in three reactions using the same substrate and enzyme. The volumes of substrate, enzyme and temperature were kept constant in each reaction. [Figure 13.1] Which statement explains the difference in these reactions?
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.
AThe pH in reactions 2 and 3 has denatured the enzyme.
BThere is a non-competitive inhibitor present in reaction 3.
CThere is the highest concentration of enzyme in reaction 1.
DThere is the highest concentration of substrate in reaction 1.
✓ Correct answer
C: There is the highest concentration of enzyme in reaction 1.
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