Question 14
Question 14 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. Transport in humans
11.3. Blood vessels

Describe, and identify on diagrams and photomicrographs, the structure of arteries, veins and capillaries, limited to: (a) relative thickness of wall (b) composition of wall (muscle and elastic tissue) (c) diameter of lumen (d) presence of valves

11. Transport in humans
11.4. Blood

Describe the transfer of substances between blood in capillaries, tissue fluid and body cells

7. Transport in flowering...
7.2. Transpiration and translocatio...

Relate the structure of xylem vessels to their function, limited to: (a) thick walls with lignin (details of lignification are not required) (b) no cell contents (c) cells joined end-to-end with no cross walls to form a long continuous tube