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प्रश्न
The diagram of an given below demonstrates a particular process in plants. Study the same and answer the questions that follow :
(i) Name the apparatus.
(ii) Which phenomenon is demonstrated by this apparatus?
(iii) Explain the phenomenon mentioned in (ii) above.
(iv) State two limitations of using this apparatus.
(v) What is the importance of the air bubble in the experiment?
(vi) Name the structures in a plant through which the above process takes place.
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उत्तर
(i) The apparatus is called Ganong’s Potometer.
(ii) The phenomenon is called transpiration.
(iii) The evaporative loss of water in the form of water vapour from the aerial parts of plants is known as transpiration.
(iv) Two limitations are
- It is not easy to introduce the air bubble into the capillary.
- The twig may not remain fully alive for a long time.
(v) The air bubble helps measure the rate of transpiration.
(vi) Transpiration occurs through roots.
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संबंधित प्रश्न
Name the following:
The process by which water enters root hairs.
What part is played by The cytoplasm in the uptake of water into the root hair?
What would happen to the root hair of a potted plant if the soil was watered with an extremely concentrated solution of sodium chloride?
Choose the correct answer:
The water is translocated upwards from the roots through _____________
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
Guttation in plants occurs maximum at midday.
The diagram given below represents the result of an experiment conducted on two freshly taken shoots of a green herbaceous plant. The lower ends dip in the water.
(i) What is the aim of the experiment?
(ii) Some parts of the stem in both the shoots have been removed. Name the conducting tissue in shoot A and in shoot B, that has been removed.
(iii) What are the results of this experiment?
Name the following:
Name the process by which intact plants lose water in the form of droplets.
In soil which of the following type of water is available for absorption by plant roots?
Root hair occurs in the zone of ____________.
Aquatic animals like fish excrete their wastes in gaseous form as ______.
