Question 27
Question 27 of 40
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Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
11. Gas exchange in human...
11.1. Gas exchange in humans

Describe the differences in composition between inspired and expired air, limited to: oxygen, carbon dioxide and water vapour

13. Excretion in humans
13.1. Excretion in humans

State that carbon dioxide is excreted through the lungs

9. Transport in animals
9.4. Blood

State the functions of the following components of blood: (a) red blood cells in transporting oxygen, including the role of haemoglobin (b) white blood cells in phagocytosis and antibody production (c) platelets in clotting (details are not required) (d) plasma in the transport of blood cells, ions, nutrients, urea, hormones and carbon dioxide