Advertisements
Advertisements
Question
The cause of wilting is more because of ______.
Options
respiration
photosynthesis
absorption
transpiration
Advertisements
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.
APPEARS IN
RELATED QUESTIONS
Describe an experiment to show that the plant loses water through its leaves.
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in (a) above in the correct form by changing either the first or the last word only.
Transpiration creates a pull for the upward movement of the sap.
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Most transpiration occurs during midday.
Choose the correct answer:
In herbaceous plants, following percentage of absorbed water comes out __________
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:
Guard cells
Choose the Odd One Out
