DP Biology (first assessment 2025)

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Question 23M.1B.SL.TZ1.b

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1B.SL.TZ1.b
Level SL Paper 1B Time zone TZ1
Command term Identify Question number b Adapted from N/A
b.
[Maximum mark: 1]
23M.1B.SL.TZ1.b

Identify one variable that should be kept constant while measuring enzyme activity at all temperatures.

[1]

Markscheme

pH/concentration of enzyme/concentration of substrate;

Do not accept temperature

Do not accept “amount”

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