DP Biology (first assessment 2025)

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Question 19N.1B.SL.TZ0.2a

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.1B.SL.TZ0.2a
Level SL Paper 1B Time zone TZ0
Command term State Question number a Adapted from N/A
a.
[Maximum mark: 1]
19N.1B.SL.TZ0.2a
(a)

State another independent variable that would affect the activity of this enzyme.

[1]

Markscheme

temperature
OR
lactose/substrate concentration
OR
Inhibitors / cofactors ✔

Do not accept pH or acidity.

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