In root anatomy, root hairs are formed in which region?

In root anatomy, root hairs are formed in which region?

• A. Meristematic region
• B. Region of maturation
• C. Region of elongation
• D. Root cap

Answer: (B)

Root hairs form in the zone of maturation, the region where epidermal cells have finished differentiating into hair-bearing cells. These mature epidermal cells develop into trichoblasts that grow tubular extensions—root hairs—to increase surface area for water and mineral absorption. The root cap at the tip protects the growing tip and doesn’t produce root hairs, while the region of elongation contains cells expanding in size but not yet specialized. The meristematic region is where cells are actively dividing, not forming root hairs. So, the zone of maturation is the true site of root hair formation.

Root hairs form in the zone of maturation, the region where epidermal cells have finished differentiating into hair-bearing cells. These mature epidermal cells develop into trichoblasts that grow tubular extensions—root hairs—to increase surface area for water and mineral absorption. The root cap at the tip protects the growing tip and doesn’t produce root hairs, while the region of elongation contains cells expanding in size but not yet specialized. The meristematic region is where cells are actively dividing, not forming root hairs. So, the zone of maturation is the true site of root hair formation.