DP Biology (first assessment 2025)

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Question 22M.1A.SL.TZ1.5

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1A.SL.TZ1.5
Level SL Paper 1A Time zone TZ1
Command term Question number 5 Adapted from N/A
5.
[Maximum mark: 1]
22M.1A.SL.TZ1.5

The graph shows the activity of an enzyme at various temperatures. The pH of the experiment was kept constant at pH 8.

Based on the data, what would the result be if the experiment was repeated at pH 9?

A. The enzyme activity would be higher.

B. The results of the enzyme activity would be almost the same.

C. The enzyme activity would be lower.

D. There is not enough information to make a reliable prediction.

[1]

Markscheme

D

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