O-LevelBiologyEnzymes5090/11 · Oct/Nov 2014 · Q41 Mark
The diagram illustrates the 'lock and key' hypothesis of enzyme action. What are the enzyme, product and substrate in this reaction?
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.
Aenzyme: W, product: X, substrate: Y and Z
Benzyme: W, product: Y and Z, substrate: X
Cenzyme: X, product: W, substrate: Y and Z
Denzyme: X, product: Y and Z, substrate: W
✓ Correct answer
B: enzyme: W, product: Y and Z, substrate: X
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