describe how transpiration helps in the transport of water in a plant.
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Answer:
Evaporation of water molecules from the cells of a leaf creates a suction which pulls water from the xylem cells of roots. Thus, transpiration helps in the absorption and upward movement of water and minerals dissolved in it from roots to the leaves.The upward water transport in trees occurs in the xylem cells of the plants. Two forces combine to move water upward in these tubes: root pressure and transpiration. Transpiration occurs when water evaporates from leaf surfaces and causes lower pressure in the leaves. This also exerts a slight upward force on the fluid column.(water) xylem act as capillaries. The transpirational pull leads to the ascent of sap and the fluid moves upwards to great heights in plants
Answer:
When transpiration takes place, the leaf cells become less turgid as they lose water in the process. This causes the entry of water into the cells from the veins through osmosis. The veins pull water from the stem, which in turn pulls water from the roots. This process is called transpiration pull. Transpiration pull works because water forms a continuous column in the xylem. This process is very much like drinking by using a straw.
Explanation: