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प्रश्न
Mark the most appropriate answer in the following:
In hot summer days, plant cooling is due to :
पर्याय
Loss of water vapours from leaves
Transport of water in a plant
Loss of liquid water
Loss of water from the entire plant
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उत्तर
Loss of water vapours from leaves
APPEARS IN
संबंधित प्रश्न
Name the factors which affect the rate of transpiration? State their role in each case.
(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.
Atmospheric humidity promotes transpiration from a green plant.
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:
Forest bring in the rain, transpiration is the cause.
Explain the Term
Transpiration
Explain the term:
Cuticular transpiration
Differentiate Between Transpiration and Translocation.
Study the diagram given alongside and answer the questions that follow:
(i) Explain the physiological process of being study.
(ii) What will be the observations in the two test-tubes after about 2-3 days?
(iii) Give a reason for your answer in (ii) above.
(iv) Why is the surface of water covered with oil?
(v) State the purpose of setting up test tube B.
Write the functional activity of the following structure:
Guard cells
