Biology
How does transpiration help the roots absorb water and minerals from the soil?
Transport in Plants
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Answer
As a result of transpiration, a suction force is created in the xylem vessel. This force causes the water to be pulled up from the xylem in the roots to the stem and then to the leaves. This pulling force is called transpirational pull. Xylem tissues are in the form of capillary tubes. Whenever the xylem vessels lie empty, such as during the loss of water by transpiration, the water from below rises into them by a capillary force. As more water and minerals are drawn upwards through the stem, this causes the roots to absorb more water and minerals from the soil.
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