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प्रश्न
The rate of transpiration is more when
विकल्प
atmosphere is dry
temperature is high
humidity is high
atmosphere is dry and temperature is high
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उत्तर
atmosphere is dry and temperature is high
Explanation:
When the atmosphere is dry, there is low humidity, creating a large difference in water vapour concentration between the inside of the leaf and the surrounding air.
High temperatures increase the kinetic energy of water molecules inside the leaf, speeding up evaporation.
Dry atmospheric conditions and high temperatures maximize transpiration by promoting faster evapouration within the leaf and enhancing water vapour diffusion into the surrounding air.
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.
Give suitable explanation for the following:
Excessive transpiration results in the wilting of the leaves.
Give suitable explanation for the following:
Water transpired is the water absorbed.
What is wilting? Some plants show wilting of their leaves at noon even when the soil is well watered, Why is it so?
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.
Answer the following (only in few words);
What is the effect of temperature on transpiration?
Explain how the rate of transpiration is affected on:
a foggy day
Briefly explain how the rate of transpiration is affected by:
The intensity of light.
Give a reason/suitable explanation.
Transpiration increases with the velocity of the wind.
