O-LevelBiologyEnzymes5090/12 · Oct/Nov 2023 · Q61 Mark
Which statement describes enzyme-catalysed reactions?
AAll enzymes work best at the same pH.
BAs an enzyme-catalysed reaction progresses, the concentration of reactants increases.
CAs the temperature of an enzyme-catalysed reaction increases from 0°C to 20°C, the frequency of effective collisions increases.
DEnzymes are denatured as the temperature of an enzyme-catalysed reaction is lowered from 20 °C to 0°C.
✓ Correct answer
C: As the temperature of an enzyme-catalysed reaction increases from 0°C to 20°C, the frequency of effective collisions increases.
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