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Question
The cause of wilting is more because of ______.
Options
respiration
photosynthesis
absorption
transpiration
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Solution
The cause of wilting is more because of transpiration.
Explanation:
Wilting happens when the rate of water loss from the aerial parts of a plant significantly exceeds the rate of water absorption by its root system. This rapid loss of water vapour occurs through transpiration. When transpiration is excessive (especially during hot, dry days), the plant cells lose their turgor pressure and flatten, causing the leaves and non-woody stems to lose their rigidity and droop downward.
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RELATED QUESTIONS
Fill in the blank with the suitable term given below:
Transpiration is reduced if the air is __________.
Transpiration helps in creating ______ force and in eliminating excess ______.
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Most transpiration occurs during midday.
Answer the following (only in few words);
When does stomatal transpiration take place in plants?
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:
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Study the diagram given alongside and answer the questions that follow:
(i) Explain the physiological process of being study.
(ii) What will be the observations in the two test-tubes after about 2-3 days?
(iii) Give a reason for your answer in (ii) above.
(iv) Why is the surface of water covered with oil?
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Loss of water from the aerial parts of a plant.
Give Technical Term
Main function of lenticel.
