Question

2. The diagram given below demonstrates a particular process in plants. Study the same and
answer the questions that follow:
Name the apparatus.
Which phenomenon is demonstrated by this apparatus?
Explain the phenomenon mentioned in above.
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.​

Answer 1

Explanation:

The air bubble in Ganong's potometer is to mark the progress of transpiration and absorption of water by the freshly cut leafy twig which must be devoid of any roots. A photometer is a device which is used to measure the rate of water uptake by the plant.

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Answer 2

The air bubble in Ganong's potometer is to mark the progress of transpiration and absorption of water by the freshly cut leafy twig which must be devoid of any roots. A photometer is a device which is used to measure the rate of water uptake by the plant....