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प्रश्न
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?
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उत्तर
Test tube B is used here as a control. This makes the observation of the change in test tube A easy.
संबंधित प्रश्न
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.
Answer the following (only in few words);
Give one important difference between transpiration and evaporation.
Choose the correct answer:
The cause of wilting is more ___________
Give Reasons for the following:
Forest bring in the rain, transpiration is the cause.
Give Reasons for the following:
Why do some herbaceous plants show wilting of leaves during mid-day which again recover in the evening?
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.
Complete the following sentence with appropriate word:
Plants become cool as a result of __________.
