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प्रश्न
Give suitable explanation for the following:
Excessive transpiration results in the wilting of the leaves.
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उत्तर
When the rate of transpiration far exceeds the rate of absorption of water by roots, the cells lose their turgidity. Hence, excessive transpiration results in wilting of the leaves.
संबंधित प्रश्न
One of the internal factors which affect the rate of transpiration is
The loss of water as water vapour from the acrial parts of a plant is known as
Transpiration is best defined as
In an experiment, four freshly plucked leaves (A-D) of a plant, such as those of china – rose, were treated as follows:
(a) Coated with Vaseline on its upper surface.
(b) coated on the lower surface.
(c) coated on both surface
(d) left uncoated.
All the four leaves A, B, C & D were left in a room for about 24 hours.
(i) which leaf would become most limp? Why?
(ii) which leaf would show least limping? Why?
Describe any three conditions which affect transpiration.
“A higher rate of transpiration is recorded on a windy day rather than on a calm day.” Explain.
Give Technical Term
The substances which check the rate of transpiration.
Name three extrinsic factors which decrease the rate of transpiration.
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in (a) above in the correct form by changing either the first or the last word only.
Atmospheric humidity promotes transpiration from a green plant.
