PLANTS
TRANSPORT IN PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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As temperature increases the rate of transpiration decreases
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As temperature increases the rate of transpiration increases.
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As temperature increases the rate of transpiration stays constant
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Detailed explanation-1: -Transpiration is the evaporation of water from plants that occurs in the leaves during photosynthesis, when stomata open and CO2 and O2 pass through. As the temperature rises, the water evaporates faster, so plants sweat faster at higher temperatures.
Detailed explanation-2: -Temperature-increasing temperature increases the rate of transpiration because more heat energy means that the water molecules have more kinetic energy and will diffuse faster out of the stomata. This increases the water potential gradient between the inside and outside of the leaf.
Detailed explanation-3: -Stomata are minute pores present on the lower side of the leaves that help in the exchange of gases and water vapour. When the stomatal pores open the rate of transpiration increases, and when the pores are closed, the loss of water is reduced.