Collenchyma can be differentiated from parenchyma by

Options

A. living protoplams
B. pecto-cellulosic deposits at corners
C. cellulosic wall
D. no protoplasm

Answer

To differentiate collenchyma from parenchyma, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Collenchyma**:
- Collenchyma cells have thickened cell walls, primarily due to the presence of pectin. This thickening occurs at the corners where the cells meet, giving collenchyma its characteristic flexibility and support.

2. **Understand the Structure of Parenchyma**:
- Parenchyma cells, on the other hand, typically have thin cell walls and are more uniform in structure. They are involved in storage, photosynthesis, and tissue repair.

3. **Compare Cell Wall Composition**:
- In collenchyma, the cell wall is rich in pectin, hemicellulose, and cellulose. The pectin provides flexibility and strength, which is crucial for young stems and leaf petioles.
- In parenchyma, the cell wall is primarily composed of cellulose, with little to no pectin, making them less rigid compared to collenchyma.

4. **Identify Key Differences**:
- The key difference lies in the presence of pectocellulosic deposits in collenchyma, which are concentrated at the corners of the cells, whereas parenchyma lacks this feature.

5. **Conclusion**:
- Therefore, collenchyma can be differentiated from parenchyma by the presence of pectocellulosic deposits at the corners of the cell walls.

### Final Answer:
Collenchyma can be differentiated from parenchyma by the presence of pectocellulosic deposits in the corners of the cell walls.

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