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Question

The mechanism of transpiration in plants is performed by:

A
Stem
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B
Only leaves
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C
Flowers
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D
All of these
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Solution

The correct option is D All of these
Water loss by transpiration may take place from any part of the plant exposed to external atmosphere. It occurs, however, principally from the leaves and is known as foliar transpiration. Only, a relatively small quantity of water is transpired from the stem and is called cauline transpiration.
So, the correct answer is D.

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