Cell membrane has a common function in both plants and animals.
Cell membrane performs the function of

Options

A. controlling the movement of materials in and out of the cell
B. manufacturing energy to carry out various functions
C. controlling the activities of the cell
D. storing food, water, and waste

Answer

**Step-by-Step Solution:**

1. **Understanding the Cell Membrane's Function**: The cell membrane is a crucial component of both plant and animal cells. It acts as a barrier that separates the interior of the cell from the external environment.

2. **Identifying the Common Function**: One of the primary functions of the cell membrane is to control the movement of substances into and out of the cell. This is known as selective permeability.

3. **Evaluating the Options**:
- **Option 1**: Controlling the movement of material in and out of the cell. This is correct because the cell membrane regulates what enters and exits the cell.
- **Option 2**: Manufacturing energy to carry out various functions. This is incorrect because energy is produced in the mitochondria, not the cell membrane.
- **Option 3**: Controlling the activities of the cell. This is incorrect because the nucleus is responsible for controlling cell activities.
- **Option 4**: Storing food, water, and waste. This is incorrect because storage occurs in vacuoles, not the cell membrane.

4. **Conclusion**: The correct answer is that the cell membrane performs the function of controlling the movement of materials in and out of the cell.

**Final Answer**: The cell membrane performs the function of controlling the movement of materials in and out of the cell.

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