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प्रश्न
Complete the following sentence with appropriate word:
In Nerium, the stomata are present in _________.
उत्तर
In Nerium, the stomata are present in Sunken pits.
APPEARS IN
संबंधित प्रश्न
Distinguish between the following:
Stomata and lenticels
Choose the correct answer:
Stomata can open in night also in _______________
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?
Draw a labeled diagram of the stomatal apparatus and label the following in it: Stoma, Guard cells, Chloroplast, Epidermal cells, and Cell wall.
Choose the Odd One Out
Suppose you have a rose plant growing in a pot, how will you demonstrate transpiration in it?
Give a reason/suitable explanation.
Leaves of some plants wilt during midday and recover in the evening.
