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प्रश्न
Give suitable explanation for the following:
Water transpired is the water absorbed.
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उत्तर
Plants absorb water continuously through their roots, which is then conducted upwards to all the aerial parts of the plant, including the leaves. Only a small quantity of this water i.e. about 0.02% is used for the photosynthesis and other activities. The rest of the water is transpired as water vapour. Hence water transpired is the water absorbed.
संबंधित प्रश्न
With decrease in atmospheric pressure, the rate of transpiration will
Transpiration will be fastest when the day is
Give suitable explanation for the following:
More transpiration occurs from the lower surface of a dorsiventral leaf.
List the four advantages of transpiration to the plants.
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
Briefly explain how the rate of transpiration is affected by:
The humidity of the atmosphere.
Name the following:
Season in which the transpiration rate is the highest.
How does the rate of Transpiration differ when there is High humidity?
Name the three external factors which increase the rate of transpiration.
