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प्रश्न
Give Reasons for the following:
Balsam plants wilt during midday even if the soil is well watered.
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उत्तर
The transpiration rate in such plants is very high during mid-day and exceeds the water absorption rate of the roots. So more water is lost than absorbed. This water deficiency in cells causes them to lose turgidity and the plants wilt.
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संबंधित प्रश्न
Given below is an example of a certain structure and its special functional activity:
Chloroplasts and Photosynthesis.
In a similar way, write the functional activity against each of the following:
Thick cuticle and ………………………..
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Atmospheric humidity promotes transpiration from a green plant.
Briefly explain how the rate of transpiration is affected by
Intensity of light
Choose the correct answer:
Who had said that "transpiration is a necessary evil"?
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions.
When the weight of the test tubes A and B is taken before and after the experiment, what change is observed? Justify.
Give Reasons for the following:
Young plants wilt on a hot sunny day.
State the Location:
Hydathodes
Write the functional activity of the following structure:
Cuticle
Mark the most appropriate answer in the following:
In hot summer days, plant cooling is due to :
