Question

Root hairs develop from the region of.
A) Meristematic activity
B) Maturation
C) Elongation
D) Root cap

Answer 1

Hint: A root hair is a tubular outgrowth of a trichoblast, a hair-forming tissue on the epidermis of a plant root. It is the region situated at the top of the root, or nearest to the plant.

Complete Answer:
 Root hairs are where much water absorption occurs. They are lengthy and can penetrate between soil particles and prevent the entry of harmful bacteria through the xylem vessels into the plant.

Now, let us find the solution from the options-
- The primary root has three regions- meristematic region, elongation region, and maturation region.
A) Meristematic region is the place where cell division takes place. It is the first region behind the root cap which appears like an inverted cone.
- The next region present in primary root is the elongation region. This is the root lengthening region.
B) In the elongation region, the cells that have been generated in the meristematic zone expand. Here, no new cells are formed, but this is the region that usually produces the root growth.
C) A maturation region is the third region found in primary root development. As the name suggests, this is the region of cell maturation. That is also where the cells that have developed in the area of elongation mature entirely and become adult cells.
The maturation zone seems to have a very fine thread, known as root hair, which tends to absorb the soil's water and minerals.
D) The root cap is known as the end of the root. The root cap is used to protect the root.

Thus, the correct answer is option (B) Maturation.

Note: Cell division takes place in the region of maturation. It is the region where cells achieve an identity as to what role they will represent within the root system of the plant. To store and transfer nutrients, cells become parenchyma cells. Or, they form sclerenchyma cells which take part in the cell wall. Cells vary depending on the level of differentiation and level of maturation inside the cell wall.