Explain the structure of plasma membrane. What are its major functions?

Explanation

### Step-by-Step Text Solution

**1. Introduction to Plasma Membrane:**
The plasma membrane, also known as the cell membrane, is a crucial component of all living cells. It acts as a barrier that separates the internal environment of the cell from the external surroundings.

**2. Structure of Plasma Membrane:**
The structure of the plasma membrane can be explained using the **Fluid Mosaic Model**, which was proposed by scientists Singer and Nicholson.

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