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Question

Read the following statements and answer the question
i) Present on the stem as epidermal hairs.
ii) They are usually multicellular.
iii) They may be branched or unbranched and soft or stiff
iv) They help in preventing water loss due to transpiration

Which part of the epidermal tissue system is being described by the above statements?

A
Stomata
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B
Guard cells
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C
Epidermis
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D
Trichomes
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Solution

The correct option is D Trichomes
The described statements are associated with trichomes. They are hair-like outgrowth from an epidermal cell of a plant. They are ephemeral or persistent and their cell wall is made up of cellulose. Trichomes serve a variety of functions on the basis of their location. As leaf hairs, they exhibit protection from herbivores and reduce transpiration. Stomata helps in transpiration present on the epidermis of the leaves. Guard cells of stomata enclose the stoma and help in opening and closing of stomata. Epidermis is the outermost layer of the plant body.

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