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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
There is a general belief that forests tend to bring more frequent rains. Can you explain it scientifically?
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?
Expand the following biological abbreviations :
(i) ABA
Answer the following (only in few words);
What is the impact of more atmospheric pressure on transpiration?
Name the following.
The instrument used for measuring the rate of transpiration.
Briefly explain how the rate of transpiration is affected by:
The intensity of light.
Briefly explain how the rate of transpiration is affected by:
The humidity of the atmosphere.
“A higher rate of transpiration is recorded on a windy day rather than on a calm day.” Explain.
Name the following:
Season in which the transpiration rate is the highest.
Give a reason/suitable explanation.
Transpiration increases with the velocity of the wind.
