Advertisements
Advertisements
प्रश्न
Briefly explain how the rate of transpiration is affected by:
The intensity of light.
उत्तर
Light intensity: It increases or decreases the rate of transpiration. In strong light, the rate of transpiration is more because stomata are wide open. In dim light or on a cloudy day the stomata are partially closed reducing the rate of transpiration.
APPEARS IN
संबंधित प्रश्न
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?
Choose the correct answer from the four options given below :
Which one of the following does not affect the rate of transpiration ?
Expand the following biological abbreviations :
IAA
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 relationship between transpiration water and water absorbed from the soil?
Explain how the rate of transpiration is affected on:
a windy day
Describe any three conditions which affect transpiration.
Name three extrinsic factors which decrease the rate of transpiration.
