O-LevelBiologyCoordination & Response5090/11 · May/June 2021 · Q191 Mark

The diagram shows structures in a human which form and store urine. Liquids pass through tubes X, Y and Z in the directions shown by the arrows. Which statement about the volume of liquid passing through Y in one day is correct? [Figure 8.1]

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AIt is greater than that passing through X.

BIt is less than that passing through Z.

CIt is much less than that passing through X but slightly greater than that passing through Z.

DIt is slightly less than that passing through X but much greater than that passing through Z.

✓ Correct answer

D: It is slightly less than that passing through X but much greater than that passing through Z.

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Topic: Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2021 Paper 1 Variant 1, question 19.

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