Advertisements
Advertisements
Question
What is wilting? Some plants show wilting of their leaves at noon even when the soil is well watered, Why is it so?
Advertisements
Solution
Wilting refers to the loss of cellular turgidity in plants which results in the drooping of leaves or plant as a whole because of lack of water.
During noon the rate of transpiration exceeds the rate of absorption of water by roots. Due to the excessive transpiration, the cells of leaves lose their turgidity and wilt.
RELATED QUESTIONS
Give suitable explanation for the following:
Excessive transpiration results in the wilting of the leaves.
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);
How does transpiration take place in night?
Answer the following (only in few words);
What is the effect of temperature on transpiration?
Answer the following (only in few words);
What is the impact of more atmospheric pressure on transpiration?
Explain how the rate of transpiration is affected on:
a windy day
Give Technical Term
The substances which check the rate of transpiration.
How does the rate of Transpiration differ when there is High temperature?
