Question

Mention some role of the plasma membrane.class 9​

Answer 1

Explanation:

Plasma membrane is the outermost layer in cells. It separates the content of cell from their external environment. It allows the materials from surrounding to enter and exit the cell. ... It also allows the movement of water in and out of the cell depending upon the concentration outside the cell by the process of osmosis.

Answer 2

Answer:

The plasma membrane, or the cell membrance , provides protection for a cell . it also provides a fixed environment inside the cell. and that membrane has several different functions. one is to transport nutrient into the cell and also transport toxic substances out of the cell.