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Question
What is wilting? Some plants show wilting of their leaves at noon even when the soil is well watered, Why is it so?
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Solution
Wilting refers to the loss of cellular turgidity in plants which results in the drooping of leaves or plant as a whole because of lack of water.
During noon the rate of transpiration exceeds the rate of absorption of water by roots. Due to the excessive transpiration, the cells of leaves lose their turgidity and wilt.
RELATED QUESTIONS
One of the internal factors which affect the rate of transpiration is
Transpiration will be fastest when the day is
Give suitable explanation for the following:
Water transpired is the water absorbed.
Choose the correct answer:
Transpiration rate is low ____________
Briefly explain how the rate of transpiration is affected by:
The intensity of light.
Name the following:
Season in which the transpiration rate is the highest.
(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.
