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प्रश्न
Give a reason.
What happens to the movement of the air-bubble if the apparatus shown above is kept in dark.
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उत्तर
Movement of the air bubble will be decreased or slow.
Reason: During dark, stomata remains closed due to which the rate of transpiration decreases which hence decreases the movement of air bubble.
संबंधित प्रश्न
Give suitable explanation for the following:
Cork and bark of trees help in preventing loss of water
- The diagram given alongside is an apparatus used to study a particular phenomenon in plants.
- Name the apparatus.
- What is it used for?
- What is the role played by the air bubble in this experiment?
- Of what use is the reservoir?
- What happens to the movement of the air-bubble if the apparatus is kept
- in dark,
- in sunlight,
- in front of fan?
Give a reason in each case.
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:
Why was the pot covered with a plastic sheet?
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Calcium chloride paper is used to demonstrate transpiration
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Moist cobalt chloride paper is blue in colour.
Name the cell that surrounds the stoma.
How can plants be grown under limited water supply without compromising on metabolic activities?
ABA (Abscisic acid) is called a stress hormone. How does this hormone overcome stress conditions?
Observe the diagram and answer the following;
 (i) |
 (ii) |
- Are these types of guard cells found in monocots or dicots?
- Which of these shows a higher water content (i) or (ii)?
- Which element plays an important role in the opening and closing of stomata?
