Q22 Analyse the given graph and answer the following questions. Rahul conducted an experiment to study the process of transpiration. He took two similar potted plants and labelled them as plant A and plant B. Plant A he covered with a plastic bag as shown in the picture and plant B he coated the lower surface of few leaves with oil and then covered the plant with the plastic bag and kept the plants in the garden. Later he recorded his results in the form of a graph.
a. During what time of the day did both of the plants leaves lose most water and Why?
Why was there a difference seen in the amount of water lost by both the plants?
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Answer:
The process demonstrates the loss of water that has appeared in the polythene bag is transpiration. As the potted plant covered with polythene bag is kept in the sunlight there will be the loss of water through the stomata present on the leaves. The water drops will appear inside the polythene bag as a result of a loss of water from the stomata. This is due to transpiration.
Explanation:
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