O-LevelBiologyCoordination & Response5090/11 · Oct/Nov 2011 · Q201 Mark

The diagram represents a kidney dialysis machine. What are the parts labelled X, Y and Z? [Figure 20.1]

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AX, Y, Z

BY, X, Z

CY, Z, X

DZ, Y, X

✓ Correct answer

C: Y, Z, X

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Topic: Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2011 Paper 1 Variant 1, question 20.

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