what is the root hair
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Root hairs, or absorbent hairs, are tubular outgrowths of a trichoblast, a hair-forming cell on the epidermis of a plant root. ... Plants absorb water through the roots from the soil by bulk flow. Root hair cells are adapted to this process by increasing root surface area for the purpose of taking in more water.
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each of a large number of elongated microscopic outgrowths from the outer layer of cells in a root, absorbing moisture and nutrients from the soil.
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