LABORATORY REVIEW
TRANSPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the rate of photosynthesis increases and so more stomata are open.
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water molecules have more kinetic energy.
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a high water potential gradient is maintained between the inside and outside of the leaf.
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Detailed explanation-1: -The faster the wind speed, the greater the transpiration rate (if all other conditions are constant). This is because the movement of air across the surface of leaves causes evaporation of water from the mesophyll cells, and this loss of water must be replaced by water moving up the xylem vessels from the roots.
Detailed explanation-2: -The transpiration rate decreases as the leaf water potential decreases and the ambient RH increases. In the case that water potential is very low and RH is very high transpiration is predicted to turn into water uptake (see Equation 4).
Detailed explanation-3: -Temperature plays a major role in the rate of transpiration. As the temperature increases, transpiration will increase due to a higher concentration in sunlight and warm air.
Detailed explanation-4: -Temperature: A rise in temperature increases the water loss by transpiration.