O-LevelChemistryOrganic Chemistry5070/11 · May/June 2020 · Q391 Mark

Insulin is a protein made in the human body. Which statements about insulin are correct? 1 It is a condensation polymer. 2 It is a synthetic polymer. 3 When hydrolysed it produces only one monomer. 4 It contains amide linkages.

A1, 2 and 3

B1 and 3 only

C1 and 4 only

D2, 3 and 4

✓ Correct answer

C: 1 and 4 only

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2020 Paper 1 Variant 1, question 39.

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