DP Biology (last assessment 2024)

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Question 22N.1.SL.TZ0.25

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Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.1.SL.TZ0.25
Level SL Paper 1 Time zone TZ0
Command term Question number 25 Adapted from N/A
25.
[Maximum mark: 1]
22N.1.SL.TZ0.25

The digestive system hydrolyses macromolecules into monomers for absorption. Which chemical(s) produced by humans can perform hydrolysis?

I.   Cellulase

II.  Glycogen

III. Amylase

A.  I and III only

B.  II and III only

C.  III only

D.  I, II and III

[1]

Markscheme

C

Examiners report

This question on hydrolysis discriminated quite well though the incorrect answer B was the most popular
response. Presumably many candidates considered that something that can be hydrolysed means that it can perform hydolysis so 'perform' may not have been the best choice of words. 

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