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प्रश्न
Give suitable explanation for the following:
More transpiration occurs from the lower surface of a dorsiventral leaf.
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उत्तर
There are more stomatal openings on the lower surface of a dorsiventral leaf. More the number of stomata, higher is the rate of transpiration. Hence more transpiration occurs from the lower surface.
संबंधित प्रश्न
With decrease in atmospheric pressure, the rate of transpiration will
The loss of water as water vapour from the acrial parts of a plant is known as
Give suitable explanation for the following:
A higher rate of transpiration is recorded on a windy day rather than on a calm day.
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?
Explain how the rate of transpiration is affected on:
a windy day
Choose the correct answer:
Rate of transpiration is more, when __________
The rate of transpiration is determined with a/an ______.
Name the three external factors which increase the rate of transpiration.
Name three extrinsic factors which decrease the rate of transpiration.
Give a reason/suitable explanation.
Transpiration increases with the velocity of the wind.
