Water resistant barrier of plasma membrane is formed by protein/phospholipid molecules.

Explanation

To solve the question regarding the water-resistant barrier of the plasma membrane, we can follow these steps:

### Step 1: Understand the Structure of the Plasma Membrane
The plasma membrane, also known as the cell membrane, is a biological membrane that separates and protects the interior of the cell from the external environment. It is primarily composed of a double layer of phospholipids along with proteins embedded within this layer.

**Hint:** Recall that the plasma membrane is made up of a lipid bilayer and proteins.

### Step 2: Identify the Components of the Plasma Membrane
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