One of the following functions of the cell membrane cannot be attributed to its fluid occurs

Options

A. Cell growth
B. Protection from injury
C. Secretion
D. All the above

Answer

To solve the question regarding which function of the cell membrane cannot be attributed to its fluid nature, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks us to identify which of the given functions of the cell membrane is not related to its fluid nature.

2. **Identify the Functions Listed**: The options provided are:
- Cell growth
- Protection from injury
- Secretion
- All of the above

3. **Review the Fluid Mosaic Model**: The fluid mosaic model describes the structure of the cell membrane, highlighting that it is composed of a lipid bilayer with proteins that can move laterally. This fluidity is crucial for various cellular functions.

4. **Analyze Each Function**:
- **Cell Growth**: The fluid nature of the membrane allows for the expansion and incorporation of new materials, which is essential for cell growth.
- **Secretion**: The movement of proteins and lipids within the membrane facilitates the process of secretion, as vesicles can fuse with the membrane to release substances.
- **Protection from Injury**: While the membrane does provide a barrier and some protection, this function does not specifically rely on the fluid nature of the membrane. It is more about the structural integrity rather than the fluidity.

5. **Determine the Correct Answer**: Based on the analysis, the function that cannot be attributed to the fluid nature of the cell membrane is **Protection from Injury**.

### Final Answer:
The function of the cell membrane that cannot be attributed to its fluid nature is **Protection from Injury**.

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