Question

what are root hair? what are their functions?​

Answer 1

Answer:

Root hair, or absorbent hairs, are outgrowths of epidermal cells, specialized cells at the tip of a plant root. They are lateral extensions of a single cell and are only rarely branched. They are found in the region of maturation, of the root.

Explanation:

Functions:

To collect water and mineral nutrients in the soil to be sent throughout the plant. In roots, most water absorption happens through the root hairs. The length of root hairs allows them to penetrate between soil particles and prevents harmful bacterial organisms from entering the plant through the xylem vessels.

Increasing the surface area of these hairs makes plants more efficient in absorbing nutrients and interacting with microbes.

Answer 2

• Root hairs, also known as absorbent hairs, are outgrowths of epidermal cells, which are specialized cells located at the root's tip.
• They are only seldom branched and are lateral expansions of a single cell.
• They're discovered in the root's maturation zone. Root hair cells increase the root surface area, which allows the plant to absorb more water.
• This intake is greatly facilitated by the huge vacuole seen inside root hair cells.
• The principal contact between plants and mycorrhizal fungi, root hairs, are also critical for nutrient intake.

Function

• Root hairs gather water and minerals from the soil and transport them throughout the plant.
• Root hairs are long enough to penetrate between soil particles, preventing dangerous germs from entering the plant via the xylem vessels.  
• Plants absorb nutrients more efficiently and interact with bacteria when the surface area of these hairs is increased.
• Root hair cells lack chloroplasts because they do not carry out photosynthesis.