Question

Write the functions of

1. phloem parenchyma
2. xylem parenchyma
3. xylem fibres

Answer 1

a. Phloem parenchyma

Phloem parenchyma constitutes the living component of the phloem tissue. These are simple parenchyma cells.

Function

Phloem parenchyma helps in the storage of food and also shows lateral conduction of food.

b. Xylem parenchyma

Xylem parenchyma constitutes simple parenchyma cells, the only living cells of xylem tissue.

Function

Xylem parenchyma functions as the storage unit of food materials, storing food as starch, fats, etc.

c. Xylem fibres

These are long, non-living cells with thick lignin deposition on the walls and have long tapering lumens in them.

Function

Xylem fibres help in the movement of water and nutrients to various parts of the plant.