Question 24
Question 24 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
14. Homeostasis
14.2. Homeostasis in plants

describe the structure and function of guard cells and explain the mechanism by which they open and close stomata

15. Control and coordinat...
15.2. Control and coordination in p...

describe the rapid response of the Venus fly trap to stimulation of hairs on the lobes of modified leaves and explain how the closure of the trap is achieved

7. Transport in plants
7.1. Structure of transport tissues

draw and label xylem vessel elements, phloem sieve tube elements and companion cells from microscope slides, photomicrographs and electron micrographs