Question

what do you mean by root hair​

Answer 1

Root hairs, or absorbent hairs, are tubular outgrowths of a trichoblast, a hair-forming cell on the epidermis of a plant root. These structures are lateral extensions of a single cell and are only rarely branched. They are found in the region of maturation, also called the zone of differentiation of the root.

Answer 2

Answer:

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.