Anatomy Of Flowering Plants Question 60
Question: Which one of the following statement is incorrect?
(i) Epidermal cell has small amount of cytoplasm and a large vacuole. (ii) Waxy cuticle layer is absent in roots. (iii) Root hairs are unicellular, while stem hairs/ trichomes are multicellular. (iv) Trichomes may be branched or unbranched, soft or stiff and prevent transpiration. (v) Guard cells are dumbbell shaped in dicots and bean-shaped in monocots (e.g., grass).
Options:
A) Only (i)
B) Only (iv)
C) Only (iii)
D) Only (v)
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Guard cells are specialised cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.
The guard cells are produced in pairs with a gap between them that forms a stomatal pore.
Guard cells are dumbbell shaped in monocots (e.g., grasses) and bean shaped in dicots.
BETA
