Question 11
Question 11 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

8. Transport in plants
8.3. Transpiration

Explain the mechanism by which water moves upwards in the xylem in terms of a transpiration pull that draws up a column of water molecules, held together by forces of attraction between water molecules