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Question
Which of the following factors affects both photosynthesis and transpiration?
Which of the following factors affects both photosynthesis and transpiration?
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Solution
The correct option is A Light intensity
The rate of photosynthesis and transpiration, both are affected by light intensity. As the light intensity is increased gradually, the rate of photosynthesis increases. With an increase in photosynthesis, the amount of glucose stored in the guard cells increases. This lowers the water potential of the leaf and water enters into the guard cells making them turgid. The turgor pressure of the guard cells helps in opening up the stomata resulting in transpiration.
Photosynthesis is affected by the amount of chlorophyll. When the amount of chlorophyll is more, the photosynthetic capacity of the plant will be more.
Photosynthesis and transpiration is unaffected by light duration.
Transpiration is affected by relative humidity. As the relative humidity of air rises, the transpiration rate falls. Water gets evaporated easily when the air is dry.
The rate of photosynthesis and transpiration, both are affected by light intensity. As the light intensity is increased gradually, the rate of photosynthesis increases. With an increase in photosynthesis, the amount of glucose stored in the guard cells increases. This lowers the water potential of the leaf and water enters into the guard cells making them turgid. The turgor pressure of the guard cells helps in opening up the stomata resulting in transpiration.
Photosynthesis is affected by the amount of chlorophyll. When the amount of chlorophyll is more, the photosynthetic capacity of the plant will be more.
Photosynthesis and transpiration is unaffected by light duration.
Transpiration is affected by relative humidity. As the relative humidity of air rises, the transpiration rate falls. Water gets evaporated easily when the air is dry.
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