O-LevelBiologyCoordination & Response5090/12 · Oct/Nov 2023 · Q271 Mark

The diagram shows how the concentration of glycogen stored in the liver of a human changes over time. The changes help to maintain a constant concentration of glucose in the blood. [Figure 27.1] During which periods is the concentration of glucose in the blood above average?

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A1 and 6

B2 and 5

C3 and 4

D3 and 5

✓ Correct answer

D: 3 and 5

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Topic: Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2023 Paper 1 Variant 2, question 27.

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