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प्रश्न
Distinguish between the following:
Transpiration and evaporation
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उत्तर
| Transpiration | Evaporation | ||
| 1. | Loss of water in the form of vapour from aerial parts of the plant. | 1. | Loss of water from the surface of the water bodies in the form of vapour |
| 2. | It is a vital and partly physical process controlled by both internal and external factors. | 2. | It is a physical change that the atmosphere's temperature and humidity control. |
| 3. | It is a slow process. | 3. | It is a fast process. |
संबंधित प्रश्न
Fill in the blank with the suitable term given below:
Transpiration is reduced if the air is __________.
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.
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:
Draw a neat, labelled diagram of a stomatal apparatus.
Answer the following (only in few words);
In which form, water comes out in transpiration?
From which structure cuticular transpiration occur in plants?
What are lenticels? Where are they found?
Explain the Term :
Wilting
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental set-up was placed in bright sunlight. Study the diagram and answer the following questions:
- Name the process intended for the study.
- Define the above mentioned process.
- When the weight of the test tubes (A and B) is taken before and after the experiment, what is observed? Give reasons to justify your observations in A & B.
- What is the purpose of keeping the test tube B in the experimental set-up?
- What is the purpose of putting oil in the test tube?
Study the diagram given below and answer the questions that follow:
(i) Name the process being studied in the above experiment.
(ii) Explain the process mentioned in (i) above.
(iii) Why is oil placed over water?
