Cell wall in dead machanical tissue shows
(a) Lignified nature
(b) Cutinized natue
(c) Pectose deposition
(d) Hemicellulose deposition

Options

A. Lignified nature
B. Cutinized natue
C. Pectose deposition
D. Hemicellulose deposition

Answer

To solve the question regarding the nature of the cell wall in dead mechanical tissue, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Type of Tissue**:
- The question refers to "dead mechanical tissue." A well-known example of such tissue is sclerenchyma.

2. **Understand the Function of Sclerenchyma**:
- Sclerenchyma is primarily responsible for providing mechanical support to the plant. This is crucial for maintaining the structure and rigidity of various plant parts.

3. **Examine the Composition of Sclerenchyma**:
- The cell walls of sclerenchyma cells are characterized by the presence of a secondary cell wall.

4. **Identify the Key Component**:
- The secondary cell walls of sclerenchyma are notably lignified. Lignin is a complex organic polymer that adds strength and rigidity to the cell walls.

5. **Conclusion**:
- Since the question specifically asks about the nature of the cell wall in dead mechanical tissue, the correct answer is that it shows a "lignified nature."

### Final Answer:
(a) Lignified nature

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