O-LevelBiologyTransport in Humans5090/11 · May/June 2013 · Q131 Mark

After muscular exercise, which blood vessel carries the lowest concentration of carbon dioxide?

Ahepatic vein

Bpulmonary artery

Cpulmonary vein

Dvena cava

✓ Correct answer

C: pulmonary vein

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Topic: Transport in Humans, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2013 Paper 1 Variant 1, question 13.

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