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प्रश्न
Briefly explain how the rate of transpiration is affected by:
The intensity of light.
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उत्तर
Light intensity: It increases or decreases the rate of transpiration. In strong light, the rate of transpiration is more because stomata are wide open. In dim light or on a cloudy day the stomata are partially closed reducing the rate of transpiration.
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संबंधित प्रश्न
The rate of transpiration is more when
Transpiration will be fastest when the day is
Give suitable explanation for the following:
Excessive transpiration results in the wilting of the leaves.
List any three major factors that accelerate the rate of transpiration.
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?
Given below is an apparatus which has setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:
Name the process being studies. Define the process.
Answer the following (only in few words);
What is the impact of more atmospheric pressure on transpiration?
Choose the correct answer:
The rate of transpiration is determined with the following instrument ____________
Briefly explain how the rate of transpiration is affected by:
The humidity of the atmosphere.
(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.
