DP Biology (first assessment 2025)

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Question SPM.1A.SL.TZ0.5

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Date May Specimen-2023 Marks available [Maximum mark: 1] Reference code SPM.1A.SL.TZ0.5
Level SL Paper 1A Time zone TZ0
Command term Question number 5 Adapted from N/A
5.
[Maximum mark: 1]
SPM.1A.SL.TZ0.5

What is a common feature of enzymes?


A.  They all react with substrates.

B.  They all decrease the rate of reaction.

C.  They are all secreted from cells in vesicles.

D.  They all bind to the active site of their substrate.

[1]

Markscheme

A

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