Question

The strength & rigidity of a cell
wall is due to the substance
known as​

Answer 1

Answer:

Cellulose ....

It is present in the cell wall which help in strengthening and gives rigidity to the cell wall.

Hope this helps !!

Answer 2

The strength & rigidity of a cell  wall is due to the substance  known as​ cellulose.

Explanation:

• Cell wall is the outer most layer of cell present in the plant and fungal cells.

• The plant cell wall is tough because it is made of carbohydrate cellulose.

• The fungal cell wall is made up of lignin which also gives strength and rigidity to the cell.

• The integrity of a plant and fungal cell is maintained due to the cell wall.