Question

5. Write about plasma membrane?​

Answer 1

Structure of Plasma Membranes

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.

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Answer 2

Answer:

The answer is as follows . Hope it helps!!!!

Explanation:

Plasma membrane is composed of organic molecules like lipids and proteins. It acts as a semipermeable membrane that allows the exchange of materials between cell and its surrounding. A semipermeable membrane allows the passage of specific material, whereas, it restrict other materials to pass through it. With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon molecule that functions as the backbone of these membrane lipids.