Paheli noticed water being pulled up by a motor pump to an overhead tank up of a building . She wondered how the water moves up to great heights in the tall trees standing next to the building.
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The water moves up to great heights in tall trees by a phenomenon called as - Capillary action.
Water from the ground first enters the plant's body through the roots by a process called as 'Osmosis'.
The leaves have pores called stomata through which the wind enters the leaves and helps to draw the water up from the roots to the shoots and leaves. These pores allow the water to be evaporated from the leaves. As the liquid is sucked out of the stomatal pore, a decrease in pressure occurs which causes the water to travel through the xylem in the tree up to great heights. This mechanism is called as Capillary action.
Water from the ground first enters the plant's body through the roots by a process called as 'Osmosis'.
The leaves have pores called stomata through which the wind enters the leaves and helps to draw the water up from the roots to the shoots and leaves. These pores allow the water to be evaporated from the leaves. As the liquid is sucked out of the stomatal pore, a decrease in pressure occurs which causes the water to travel through the xylem in the tree up to great heights. This mechanism is called as Capillary action.
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