A) the demonstration of development of suction force due to transpiration
B) measuring the rate of transpiration
C) the demonstration of ascent of sap.
D) the demonstration of anaerobic respiration
Correct Answer: B
Solution :
The experimental setup shown in the diagram is simple potometer used for measuring the rate of transpiration. In simple potometer when water is lost by the plant it is taken from the glass tube and as a result the mercury column rises.
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