Collenchyma tissue is a…………..tissue.
(1) Living and non-mechanical.
(2) Dead and mechanical
(3) Living and mechanical
(4) Dead and non-mechanical

Answer

To solve the question "Collenchyma tissue is a…………..tissue," we need to analyze the characteristics of collenchyma tissue based on the provided options.

### Step-by-Step Solution:

1. **Identify the Type of Tissue**:
- Collenchyma is one of the three fundamental tissues in plants, alongside sclerenchyma and parenchyma.

2. **Determine if it is Living or Dead**:
- Collenchyma tissue is composed of living cells. These cells have protoplasts and nuclei, which confirms that they are living.

3. **Assess Mechanical Properties**:
- Collenchyma provides mechanical support to plants. This is due to its thickened cell walls, which are irregularly thickened and made primarily of cellulose and pectin. Therefore, collenchyma is classified as a mechanical tissue.

4. **Evaluate the Options**:
- (1) Living and non-mechanical: This is incorrect because collenchyma is living but also provides mechanical support.
- (2) Dead and mechanical: This is incorrect because collenchyma is not dead; it is living.
- (3) Living and mechanical: This is correct as collenchyma is living and provides mechanical support.
- (4) Dead and non-mechanical: This is incorrect because collenchyma is living and provides mechanical support.

5. **Conclusion**:
- The correct answer is option (3) Living and mechanical.

### Final Answer:
Collenchyma tissue is a **Living and mechanical** tissue.