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प्रश्न
Name the following:
The process of getting rid of excess water in the form of water vapour through the stomata.
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उत्तर
Transpiration
APPEARS IN
संबंधित प्रश्न
Name the following:
Any two parts of a leaf which allow transpiration.
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 question that follow:
Why are glass slides placed over the dry cobalt chloride papers?
What is the advantage of wilting to a plant?
Differentiate Between Stomata and Hydathodes.
The diagram below represents a structure found in a leaf.
Study the same and answer the questions that follow:
(i) Name the pis labeled A and B.
(ii) What is the biological term for the above structure?
(iii) What is the function of the part labeled A?
(iv) Mention two structural features of A, which help in the function mentioned in (iii) above.
(v) Where is this structure likely to be found in a leaf?
(vi) The above structure helps in the process of transpiration. Explain the term transpiration.
(vii) How many other cells are found surrounding this structure as seen in the diagram?
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?
Complete the following sentence with appropriate word:
In Nerium, the stomata are present in _________.
Mark the most appropriate answer in the following:
Stomata open during day and close at night because:
Guard cells help in regulating the ______.
Give a reason/suitable explanation.
Leaves of some plants wilt during midday and recover in the evening.
