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प्रश्न
Transpiration rate is reduced ______.
पर्याय
due to less surface area of leaf.
due to bending of leaf.
by sunken stomata.
all of these.
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उत्तर
Transpiration rate is reduced due to less surface area of leaf, bending of leaf and by sunken stomata.
Explanation:
Each of these modifications serves as an effective mechanism for plants to conserve water. A smaller leaf surface area directly reduces the total number of stomata available for evaporation, while the rolling or bending of leaves traps escaping water vapour to create a highly humid pocket of air that slows down further moisture loss. Similarly, sunken stomata are deeply recessed within pits, which protect them from direct airflow and create a localised microclimate of still, humid air that dramatically lowers the overall rate of transpiration.
APPEARS IN
संबंधित प्रश्न
(a) State whether the following statement are True (T) or False (F)
(b) Rewrite the false statement in (a) above in the correct form by changing either the first or the last word only.
Wind velocity has an effect on transpiration.
What is wilting? Some plants show wilting of their leaves at noon even when the soil is well watered, Why is it so?
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?
Explain how the rate of transpiration is affected on:
a foggy day
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 a reason/suitable explanation.
Transpiration increases with the velocity of the wind.
(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.
