How is transpiration pull responsible for upward movement of water?
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As we all know plants gives out water through stomata present on their leaves.Two cells called guard cells are present on both side of stomata with conducts opening and closing of stomata through which evaporation takes place.As plant loses water,water level reduces in the plant.To compencet ,water is brought up to the leaves by xiolem.Thus water level is maintains in the plant.
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The leaves loose water in the form of water vapours through stomata by a process known as transpiration. Continuous transpiration creates a s suction in the water column of the xylem elements and it reaches upto the roots. This pull is called transpiration pull. Due to transpiration, the water column of the plant is pulled up from below to the top of the plant.
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