O-LevelBiologyTransport in Humans5090/12 · May/June 2014 · Q141 Mark

The diagram shows a section through part of a vein. [Figure 14 - Diagram showing a section of a vein with a valve, and two arrows labelled 1 and 2 indicating directions of blood flow] What could be the first organs found in the directions 1 and 2?

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.

Aheart, brain

Bintestine, liver

Ckidney, heart

Dlung, heart

✓ Correct answer

A: heart, brain

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Topic: Transport in Humans, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2014 Paper 1 Variant 2, question 14.

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