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InterviewSolution
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Amit studied transportation in plants. He wanted to observe the process of transpiration and placed a plant in bright sunlight. He noted down his observations. Next day he asked his teacher few questions about his observations. Read the above passage and answer the following questions.(i) What is the role of transpiration in plants? (ii) Explain how the transpiration rate is affected by (a) decreasing the humidity of the surrounding air. (b) increasing the temperature of the surrounding (iii) What values do you observe in Amit? |
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Answer» (i) Transpiration is the process of movement of water in the xylem tissues and its evaporation through the aerial structures of the plant like leaves and stem. It causes a transpirational pull which help in the movement of water from the roots to the leaves. (ii)(a) When humidity is decreased, transpiration is increased (b) By increasing the temperature of the surroundings, we tend to increase the rate of evaporation of water droplets through the leaves by the process of transpiration. On increasing temperature, rate of transpiration also increases. (iii) Amit is very interested in science subject. He believes in applying practical knowledges into real life experience. |
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