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प्रश्न
What are lenticels? Where are they found?
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उत्तर
Lenticels are minute, permanent openings which may develop in the young stems of woody plants. Some water is lost continuously through the lenticular openings in the form of water vapour.
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संबंधित प्रश्न
Name the factors which affect the rate of transpiration? State their role in each case.
Mention the two ways in which transpiration helps the plants.
(a) State whether the following statement are True or False.
(b) Rewrite the false statement in (a) above in the correct form by changing either the first or the last word only.
Transpiration creates a pull for the upward movement of the sap.
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Some desert plants have sunked stomata on their leaves.
Choose the correct answer:
Transpiration generates __________
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions.
What is the purpose of keeping the test tube B in the experimental setup?
What are the advantages of transpiration to the plant?
Explain the Term :
Hydathode
Differentiate Between Transpiration and Evaporation.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The pH of the guard cells increases during day time
