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प्रश्न
Name the following:
An instrument used to find the rate of transpiration.
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उत्तर
Potometer
संबंधित प्रश्न
Name the following:
The apparatus to record the rate of transpiration in a cut shoot.
Which of the following statements are true and which ones are false? Give reason in support of your answer.
Potometer is an instrument used for Demonstration of transpiration occurring from the lower surface of a leaf.
Given below is the diagram of an apparatus used to study a particular phenomenon in plants:
What is the use of the reservoir?
Given below is the diagram of an apparatus used to study a particular phenomenon in plants:
What happens to the movement of the air-bubble if the apparatus is kept:
(i) In the dark
(ii) In sunlight
(iii) In front of a fan
Give a reason in each case.
The apparatus shown in the following diagram is Garreau’s potometer designed to demonstrate unequal transpiration from the two surfaces of a dorsiventral leaf Before keeping the leaf in between the cups, anhydrous calcium chloride (CaCl2) contained in two small vials were weighed and placed in both the cups. The ends of the cups were closed with corks through which two mercury manometers were connected. After few hours, CaCl2 vials were taken out and weighed again.
What is the purpose of keeping CaCl2 vials inside the cup?
The apparatus shown in the following diagram is Garreau’s potometer designed to demonstrate unequal transpiration from the two surfaces of a dorsiventral leaf. Before keeping the leaf in between the cups, anhydrous calcium chloride (CaCl2) contained in two small vials were weighed and placed in both the cups. The ends of the cups were closed with corks through which two mercury manometers were connected. After few hours, CaCl2 vials were taken out and weighed again.
After few hours CaCl2 vials were taken out and weighed again. Will you expect any difference in weight? If so, give reason.
Write any two limitations of using a Ganong's potometer to demonstrate the uptake of water.
Name four kinds of potometers on the basis of the names of the scientists who discovered them.
Define the following term:
Potometer
