How do transpiration help in upward movement of water?
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Transpiration means the evaporation of water vapour from the leaves etc.
As the water evaporates, there is a decrease in pressure in the plant which in turn helps the root to absorb water and as the water transpires the water in the root is sucked upward by pressure and hence is transported to each and every part of plant. As the minerals are dissolved in the water (in small quantities) they are also transported through the same medium. this saves energy for the plant.
As the water evaporates, there is a decrease in pressure in the plant which in turn helps the root to absorb water and as the water transpires the water in the root is sucked upward by pressure and hence is transported to each and every part of plant. As the minerals are dissolved in the water (in small quantities) they are also transported through the same medium. this saves energy for the plant.
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When water is lost through transpiration there is a suction pull due to the low pressure in the plant, this force pulls the waters and minerals along with it. It is similar to when someone drinks juice from straws. The low pressure in the mouth forces the juice to come up the channel. Mark me as the best.
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