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Transpiration is not helpful in ________.

cooling
Loss of nutrient
Loss of water
Ascent of sap
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Transpiration is regulated by movements of

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Guard cells differ from epidermal cells in having

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Exudation of xylem sap on cutting of a shoot is due to

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The loss of water in the form of water droplets is called

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Maximum transpiration takes place from

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Rate of transpiration increases ________.

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Transpiration is least in

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Stomata of CAM plants

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Root pressure is due to

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The maximum absorption of water by roots occurs in the (region) zone of

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