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प्रश्न
Give suitable explanation for the following:
A higher rate of transpiration is recorded on a windy day rather than on a calm day.
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उत्तर
Transpiration increases with the velocity of wind. If the wind blows faster, the water vapours released during transpiration are removed faster and the area surrounding the transpiring leaf does not get saturated with water vapour.
संबंधित प्रश्न
One of the internal factors which affect the rate of transpiration is
Most of the transpiration in tall trees occurs through
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?
Answer the following (only in few words);
How does transpiration take place in night?
Transpiration rate is reduced ______.
Briefly explain how the rate of transpiration is affected by:
The intensity of light.
Give Technical Term
The substances which check the rate of transpiration.
What is cohesion?
Name the three external factors which increase 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.
