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Question
Give suitable explanation for the following:
Excessive transpiration results in the wilting of the leaves.
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Solution
When the rate of transpiration far exceeds the rate of absorption of water by roots, the cells lose their turgidity. Hence, excessive transpiration results in wilting of the leaves.
RELATED QUESTIONS
Transpiration is best defined as
Give suitable explanation for the following:
More transpiration occurs from the lower surface of a dorsiventral leaf.
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);
How does transpiration take place in night?
Explain how the rate of transpiration is affected on:
a foggy day
Mark the most appropriate answer in the following:
If the rate of transpiration becomes more than the rate of photosynthesis, plant will ______
(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.
