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Question
Give Technical Term
The substances which check the rate of transpiration.
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Solution
Anti-transpirants
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RELATED QUESTIONS
(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.
Give suitable explanation for the following:
More transpiration occurs from the lower surface of a dorsiventral leaf.
What is wilting? Some plants show wilting of their leaves at noon even when the soil is well watered, Why is it so?
There is a general belief that forests tend to bring more frequent rains. Can you explain it scientifically?
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?
Given below is an apparatus which has setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:
Name the process being studies. Define the process.
Name the three external factors which increase the rate of transpiration.
Name three extrinsic factors which decrease the rate of transpiration.
Give a reason/suitable explanation.
Transpiration increases with the velocity of the wind.
