PLANT PHYSIOLOGY
TRANSPORT IN PLANT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it draws water up the stem
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it draws dissolved salts up the stem
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it draws food up the stem
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it has a cooling effect on the leaves
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it speeds up photosynthesis
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Detailed explanation-1: -Transpiration helps in the cooling of leaf surfaces. Transpiration is the process by which moisture is carried through plants from roots to small pores on the underside of leaves, where it changes to vapour and is released into the atmosphere.
Detailed explanation-2: -Plants also cool the landscape directly through the process known as transpiration. When the surrounding atmosphere heats up, plants will often release excess water into the air from their leaves. By releasing evaporated water, plants cool themselves and the surrounding environment. “It’s like sweating.
Detailed explanation-3: -Answer. It is the loss of water as vapour from plants. Reason: Transpiration is the loss of water in the form of water vapours from aerial parts of the plant such as stems, leaves and flowers.
Detailed explanation-4: -Transpiration is the loss of water in form of water vapours through aerial parts of the leaf. It helps in drawing water from the roots to the leaves and also produces the cooling effect.
Detailed explanation-5: -Some of the water drawn up through the roots exits the plant through pores – or stomata-in its leaves, hence the sweating.As this ”sweat” evaporates, heat is removed from the air, providing a cooling effect.