Root hairs develop from the region of

Options

A. maturation
B. elongation
C. root cap
D. meristematic activity

Answer

D

Explanation

The root is covered at the apex by a thimble-like structure called the roat cap. It protects the tender apex of the root as it makes its way through the soil. A few millimetres above the root cap is the region of meristematic activity. The cells of this region are very small, thin-walled and with dense protoplasm. They divide repeatedly. The cell proximal to this region undergo rapid elongation and enlargement and are responsible for the growth of the root in length. This region is called the region of elongation. The cells of the elongation zone gradually differentiate and mature. Hence, this zone, proximal. From this region, some of the epidermal cells form very fine and delicate, thread-like structure called roat hairs. These root hairs absorb water and minerals from the soil.