DP Biology (first assessment 2025)

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Question SPM.2.SL.TZ0.8b

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Date May Specimen-2023 Marks available [Maximum mark: 4] Reference code SPM.2.SL.TZ0.8b
Level SL Paper 2 Time zone TZ0
Command term Explain Question number b Adapted from N/A
b.
[Maximum mark: 4]
SPM.2.SL.TZ0.8b
(b)

Explain the relationship between temperature and the activity of enzymes.

[4]

Markscheme
  1.  as temperature increases, the rate of molecular motion increases;
  2.  increasing the frequency of collision between enzyme and substrate;
  3.  increasing the rate of reaction;
  4.  until an optimum temperature is reached;
  5.  with further increase in temperature, enzymes denature;

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