Mechanical tissue Consisting of living cells is -

Options

A. Sclerenchyma
B. Collenchyma
C. Chlorenchyma
D. Parenchyma

Answer

To answer the question "Mechanical tissue consisting of living cells is -", we can follow these steps:

### Step-by-Step Solution:

1. **Understand Mechanical Tissues**:
- Mechanical tissues in plants are responsible for providing structural support and strength. They play a crucial role in maintaining the plant's shape and integrity.

2. **Identify Types of Mechanical Tissues**:
- The main types of mechanical tissues are sclerenchyma, collenchyma, and parenchyma.

3. **Analyze Sclerenchyma**:
- Sclerenchyma is a type of mechanical tissue that consists of dead cells. These cells have thickened walls due to lignin deposition, which provides rigidity but does not support living functions.

4. **Analyze Collenchyma**:
- Collenchyma is another type of mechanical tissue that consists of living cells. Unlike sclerenchyma, collenchyma cells have cell walls made of cellulose, pectin, and hemicellulose, allowing for flexibility and support while still being alive.

5. **Analyze Parenchyma**:
- Parenchyma is primarily a storage tissue and is also made up of living cells. However, it does not primarily serve a mechanical function like collenchyma does.

6. **Conclusion**:
- Based on the analysis, the mechanical tissue that consists of living cells is collenchyma.

### Final Answer:
The mechanical tissue consisting of living cells is **collenchyma**.

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