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प्रश्न
Write the functional activity of the following structure:
Guard cells
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उत्तर
(a) Control the size of the aperture.
(b) It also helps in photosynthesis as they contain chloroplasts also.
APPEARS IN
संबंधित प्रश्न
Mark the most appropriate answer in the following:
Transpiration pull will be maximum under which of the following conditions?
The diagram alongside represents a structure found in a leaf. Study the same and answer the questions that follow:
(i) Name the parts 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 structure (fig.5.22) 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?

Choose the correct answer:
Transpiration is more ____________
Choose the correct answer:
In herbaceous plants, following percentage of absorbed water comes out __________
Give Reasons for the following:
Land plants die if their roots remain waterlogged.
Explain the term:
Cuticular transpiration
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
More transpiration occurs from the upper surface of a leaf.
State the Location:
Lenticels
State the Location:
Cuticle
