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प्रश्न
Differentiate Between Transpiration and Guttation.
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उत्तर
| Transpiration | Guttation |
| (i) It is regulated by guard cells | It is due to root pressure. |
| (ii) It occurs at day time. | It occurs at night. |
| (iii) Water escapes through stomata and lenticels. | Water escapes through hydathodes only. |
| (iv) Water escapes in the form of water vapour. | Water escapes from the hydathodes on the margin of the leaves in the form of water droplets. |
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संबंधित प्रश्न
How does temperature, light intensity and wind affect transpiration?
(a) State whether the following statements are True Or False?
(b) Rewrite the false statements,in the correct form by changing either the first or the last word only .
Voltmeter is an instrument used for measuring the rate of transpiration in green plants.
Given below is an apparatus which has setup to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:
Why was the pot enclosed in a rubber sheet?
Answer the following (only in few words);
In which form, water comes out in transpiration?
Distinguish between the following:
Transpiration and evaporation
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?
Give Reasons for the following:
Balsam plants wilt during midday even if the soil is well watered.
Explain the term:
Cuticular transpiration
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Root hairs are the extensions of the outer epidermal cells of the root
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Evaporation is a physiological process
