The 'Fluid Mosaic Model' of plasma membrane was proposed by

Options

A. Schleiden & Schwann
B. Rodlf Virchow
C. Singer & Nicolson
D. Schwann & Nicolson

Answer

To answer the question regarding who proposed the 'Fluid Mosaic Model' of the plasma membrane, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the scientist or scientists who proposed the 'Fluid Mosaic Model' of the plasma membrane.

2. **Evaluate the Options**:
- **Option 1: Slyden and Swann**: These scientists are known for proposing the Cell Theory, not the Fluid Mosaic Model. Therefore, this option is incorrect.
- **Option 2: Rodolfo Virchow**: He is recognized as the father of modern pathology and did not propose the Fluid Mosaic Model. Thus, this option is also incorrect.
- **Option 3: Singer and Nicholson**: This option states that these scientists proposed the Fluid Mosaic Model. They indeed described this model in 1972, explaining the structure of the plasma membrane. This option is correct.

3. **Conclusion**: Based on the evaluation of the options, the correct answer is **Singer and Nicholson**.

### Final Answer:
The 'Fluid Mosaic Model' of the plasma membrane was proposed by **Singer and Nicholson** in 1972.

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