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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?
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.
APPEARS IN
संबंधित प्रश्न
Name the following:
openings on the stem through which transpiration occurs.
Name the following:
Any two parts of a leaf which allow transpiration.
Choose the correct answer:
Stomata open during day time because guard cells
Differentiate Between Stomata and Hydathodes.
Given below is an experimental set up to study a particular process:
(i) Name the process being studied.
(ii) Explain the process named in (i) above.
(iii) Why is the pot covered with a plastic sheet?
(iv) Mention one way in which this process is beneficial to the plant.
(v) Suggest a suitable control for this experiment.
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 _________.
Write a short note on lenticular transpiration.
Given below is the figure of a stoma. Study the same and answer the following questions:
- Label the guidelines A and B.
- Write the exact location of the above-mentioned structures.
- Mention one important role of structure A.
- Write three important roles for structure B.
- Redraw the same figure when structures A are in flaccid condition. When does the flaccid condition occur?
