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O-LevelBiologyTransport in Humans5090/11 · May/June 2011 · Q151 Mark

The diagram shows a section through the human heart. What happens as blood is being pumped out of the heart?

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.

Aopen 1
Bopen 2
Cclosed 1
Dclosed 2

✓ Correct answer

A: open 1

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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 2011 Paper 1 Variant 1, question 15.

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