DP Chemistry (last assessment 2024)

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Question 18M.3.hl.TZ1.8b

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.3.hl.TZ1.8b
Level hl Paper 3 Time zone TZ1
Command term Outline Question number b Adapted from N/A
b.
[Maximum mark: 2]
18M.3.hl.TZ1.8b

Polymers of glucose include starch and cellulose.

(b)

Outline why cellulose fibres are strong.

[2]

Markscheme

Any two of:

long straight/unbranched chains

multiple hydrogen bonds «between chains»

 

microfibrils

OR

rigid/cable structure

 

[2 marks]

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