HORTICULTURE SCIENCE
PLANT BIOLOGY
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: -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-2: -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.
Detailed explanation-3: -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-4: -Transpiration is loss of water in the form of vapour through aerial parts of the plant. This creates a suction force that pulls water along with minerals from the roots to the leaf. When water evaporates through the plant, it absorbs heat, which in turn cools down the plant.