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Epidermal Tissue System

The epidermal...

Question

The epidermal trichomes help in

A

transpiration and exchange of gases

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B

protection and desiccation

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C

protection and reduction of transpiration

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D

exudes water drops from their tips

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Solution

The correct option is C protection and reduction of transpiration
A trichome is iniated as a protuberance from an epidermal cell. Generally, a dense covering of woody trichomes controls the rate of transpiration. They also reduce the heating effect of sunlight. They aid the protection of plant body from outer injurious agencies.

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Similar questions

Q. Which one of the following statement is/are false?
(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 dumbell shaped in dicots and bean-shaped in monocots

Q. Assertion :Epidermal tissue system includes trichomes, epidermis and root hairs. Reason: It is responsible for conduction.

Q. Find the incorrect statements from the following.
A. Roots hairs are multicellular elongations of the epidermal cells.
B. Trichomes are unicellular epidermal hairs of the stem.
C. Guard cells are specialized cells regulating the opening and closing of stomata.
D. Cuticle, collenchyma and stomata are absent in roots.

Q. Select correct features w.r.t. trichomes in shoot system
1. Unicellular
2. Branched or unbranched
3. Maybe secretory
4. Soft or stiff
5. Helps against transpiration

Select correct features w.r.t. trichomes in shoot system

1. Usually uni-celled

2. Branched or unbranched

3. May be secretory

4. Soft or stiff

5. Helps against transpiration

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