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Question
Which one of the following will not directly affect transpiration?
Which one of the following will not directly affect transpiration?
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Solution
The correct option is C chlorophyll content of leaves
Temperature
Transpiration is loss of water from the aerial parts of the plant due to evaporation. As temperature increases, evaporation of water will increase causing the rate of transpiration to increase.
Light
An increase in the intensity of light increases evaporation and thus the rate of transpiration can increase.
Wind speed
Higher the speed of the wind, higher is the rate of evaporation and thus transpiration is directly proportional to wind speed.
Chlorophyll content of leaves
The chlorophyll of the leaf is directly responsible for the process of photosynthesis. This internal factor does not impact transpiration directly.
Transpiration is affected by leaf area and leaf structure but not by the chlorophyll content of the leaves.
Final answer: d. chlorophyll content of leaves.
Temperature
Transpiration is loss of water from the aerial parts of the plant due to evaporation. As temperature increases, evaporation of water will increase causing the rate of transpiration to increase.
Light
An increase in the intensity of light increases evaporation and thus the rate of transpiration can increase.
Wind speed
Higher the speed of the wind, higher is the rate of evaporation and thus transpiration is directly proportional to wind speed.
Chlorophyll content of leaves
The chlorophyll of the leaf is directly responsible for the process of photosynthesis. This internal factor does not impact transpiration directly.
Transpiration is affected by leaf area and leaf structure but not by the chlorophyll content of the leaves.
Final answer: d. chlorophyll content of leaves.
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