Cell wall is

Options

A. Dead and impermeable
B. Dead and permeable
C. Living and impermeable
D. Living and selective

Answer

### Step-by-Step Solution:

1. **Understanding the Cell Wall**: The cell wall is a rigid outer layer found in plant cells, fungi, and some bacteria. It provides structural support and protection to the cell.

2. **Analyzing the Characteristics**:
- **Dead and Impermeable**: This option suggests that the cell wall is dead and does not allow substances to pass through. However, this is incorrect because while the cell wall may be dead at maturity, it is not impermeable; it allows certain substances to pass.

- **Dead and Permeable**: This option states that the cell wall is dead but allows substances to pass through. This is correct because, although the cell wall becomes dead at maturity, it remains permeable to water and small molecules.

- **Living and Impermeable**: This option implies that the cell wall is alive and does not allow substances to pass. This is incorrect because the cell wall is not living and does allow some permeability.

- **Living and Selective**: This option suggests that the cell wall is alive and selectively allows substances to pass. This is also incorrect as the cell wall is not living and does not selectively control the passage of substances.

3. **Conclusion**: Based on the analysis of the characteristics, the correct answer is "Dead and Permeable."

### Final Answer:
The cell wall is **dead and permeable**.

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