According to most widely accepted model of plasma membrane:-

Options

A. Liquid protein layer is surrounded by phospholipids
B. Lipid are embedded in fluid layer of proteins
C. Proteins are embedded in fluid layer of phospholipids
D. Liquid phopholipid layer is surrounded by proteins

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the most widely accepted model of the plasma membrane and which statement correctly describes it.

2. **Identifying the Model**: The widely accepted model of the plasma membrane is known as the Fluid Mosaic Model, proposed by scientists Singer and Nicholson in 1972.

3. **Components of the Plasma Membrane**: According to the Fluid Mosaic Model, the plasma membrane consists of a lipid bilayer primarily made up of phospholipids. Each phospholipid has a hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.

4. **Arrangement of Proteins**: In this model, proteins are embedded within the lipid bilayer. These proteins can be integral (spanning the membrane) or peripheral (attached to the surface).

5. **Evaluating the Options**:
- **Option A**: "Liquid protein layer is surrounded by phospholipids" - Incorrect. The proteins are embedded in the lipid layer, not surrounded by it.
- **Option B**: "Lipids are embedded in fluid layer of proteins" - Incorrect. Lipids form the bilayer, and proteins are embedded in this layer.
- **Option C**: "Proteins are embedded in fluid layer of phospholipids" - Correct. This accurately describes the Fluid Mosaic Model.
- **Option D**: "Liquid phospholipid layer is surrounded by proteins" - Incorrect. The phospholipid layer is not surrounded by proteins; rather, proteins are integrated within it.

6. **Conclusion**: The correct answer is **Option C**: "Proteins are embedded in fluid layer of phospholipids."

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