The cellulosic cell wall is essential for plant cell because
(a) It gives shape to the cell.
(b) It gives protection to the cells.
(c) It is able to withstand high temperature, high wind speed and atmospheric moisture.
(d) It is involved in the recognition of substances required for the cells.
Cellulose fibers, structural proteins, and other polysaccharides help to maintain the shape and form of the cell.
It helps to withstand turgor pressure. The turgor pressure is the force exerted against the cell wall as the contents of the cell push the plasma membrane against the cell wall.
Plant cell is enclosed by the cell wall and it is mostly made up of cellulose. Cell wall is a protective outer covering of the cell. It is mostly present in plant cells. It supports the contents of the cell and protects from pathogen attack and wear and tear.
The cellulose wall of the plant cells,also provides it the capability to withstand any high temperature that might degrade the cell contents, high wind speed and the moisture that is p;resent in the atmosphere.
So,the correct option is 'D'.