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प्रश्न
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?
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उत्तर
(1) A—Guard cell B—Stoma.
(ii) Stomatal apparatus.
(iii) Regulates opening & dosing of Stomata.
(iv) It gives rigidity and protection to the cell.
(v) On the epidermis of the leaf.
(vi) Transpiration is the loss of water as water vapours from the aerial parts of the plant.
(vii) Five.
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संबंधित प्रश्न
Given below 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:
(i) What is the colour of dry cobalt chloride paper?
(ii) Is the experimental leaf a monocot or a dicot? Give a reason to support your answer.
(iii) Why axe glass slides placed over the dry cobalt chloride papers?
(iv) After about half an hour what change, if any, would you expect to find in the cobalt chloride paper placed on the dorsal and ventral sides of the leaf? Give a reason to support your answer.
(v) Define the term ‘transpiration’.
Name the following:
A potometer is an instrument for measuring the rate of the most transpiration in a herbaceous plant like Balsam occurs through which part.
Complete the following sentence with appropriate word:
In Nerium, the stomata are present in _________.
Complete the following sentence with appropriate word:
Openings found on the undersurface of the dorsiventral leaf are ___________.
State the Location:
Stomata
Suppose you have a rose plant growing in a pot, how will you demonstrate transpiration in it?
Mention the differences between stomatal and lenticular transpiration.
