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O-LevelBiologyTransport in Humans5090/11 · May/June 2022 · Q151 Mark

The diagram shows the right side of the human heart when the ventricle is relaxed. [Figure 15.1] Which row describes the positions of valve X and valve Y when the ventricle contracts?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Aclosed, closed
Bclosed, open
Copen, closed
Dopen, open

✓ Correct answer

B: closed, open

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About this question

Topic
Transport in Humans, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, May/June 2022 Paper 1 Variant 1, question 15.

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