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Question
What is the advantage of wilting to a plant?
Solution
The stomata close and there is a general reduction in the loss of water by the leaves due to transpiration.
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RELATED QUESTIONS
Given ahead is the diagram of an experimental set up to study the process of transpiration in plants. Study the same and then answer the questions that follow:
Is the experimental leaf a monocot or a dicot? Give a reason to support your answer.
State the functions of guard cells.
The apparatus shown here is Girreau’s poto-meter designed to demonstrate unequal transpiration from the two surfaces of a dorsiventral leaf. Before keeping the leaf in between the cups, anhydrous calcium chloride (CaCl2) contained in two small vials were weighed and placed in both the cups. The ends of the cups were closed with corks through which two mercury manometers were connected. After a few hours, CaCl2 vials were taken out and weighed again.
(i) What is the purpose of keeping CaCl2 vials inside the cup?
(ii) After a few hours, the CaCl2 vials were taken out and weighed again. Will you expect any difference in weight? If so, give reasons.
(iii) What was the purpose of using a mano-meter?
(iv) What do you mean by transpiration?
Draw a labeled diagram of the stomatal apparatus and label the following in it: Stoma, Guard cells, Chloroplast, Epidermal cells, and Cell wall.
Name the following:
A plant having sunken stomata.
Complete the following sentence with appropriate word:
In Nerium, the stomata are present in _________.
Mark the most appropriate answer in the following:
In the mechanism of opening and closing of stomata, the important factor is
Mark the most appropriate answer in the following:
Stomata open during day and close at night because:
Mention the differences between stomatal and lenticular transpiration.
The paper used to demonstrate unequal transpiration in a dicot leaf is ______.
