O-LevelBiologyEnzymes5090/12 · May/June 2019 · Q41 Mark
Which graph shows the effect of temperature on the rate of a reaction catalysed by amylase?
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.
Agraph showing rate of reaction increasing to an optimum then sharply decreasing.
Bgraph showing rate of reaction increasing to an optimum then gradually decreasing.
Cgraph showing rate of reaction increasing and then plateauing.
Dgraph showing rate of reaction decreasing from the start.
✓ Correct answer
B: graph showing rate of reaction increasing to an optimum then gradually decreasing.
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