What is the function of the cell membrane?

The cell membrane is otherwise called a Plasma membrane. It may be defined as the thin, elastic, semipermeable living membrane that serves as a boundary for the Cytoplasm. The Cell membrane is made up of glycoproteins and phospholipids.

The Functions of the Cell membrane are as follows:

Cell membrane or Plasma membrane is a semipermeable membrane present around the Protoplasm.

It acts as a boundary to the cell.

It gives a definite shape to the Cell.

It gives Mechanical support to the Cell.

It protects cell contents.

It regulates the exchange of materials into and out of the cell.

The Sites for cell recognition are located on the surface of the Plasma membrane or Cell membrane.

The Cell membrane of nerve fibres transmits nerve impulse.

Cell membrane maintains a balance of Osmotic pressure between the inter and intracellular fluids.

Diffusion or Passive transport occurs through pores present in the Cell membrane.

Endocytosis and Exocytosis take place through the Plasma membrane or Cell membrane.


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