Question

List two main function s of plasma membrane?

Answer 1

The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.

Answer 2

it allows only certain substances into the cell
so it is called as semi permeable membrane
it also gives shape to the cell