A deposition material of secondary origin found in sclerenchyma cell is :

Options

A. Suberin
B. Pectin
C. Lignin
D. Hemicellulose

Answer

To solve the question regarding the deposition material of secondary origin found in sclerenchyma cells, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Sclerenchyma Cells**:
- Sclerenchyma cells are a type of permanent tissue in plants. They are known for their structural support.

2. **Identify Characteristics of Sclerenchyma Cells**:
- These cells are characterized by being long and narrow with thickened cell walls. They are typically dead at maturity and lack protoplasts (the living part of the cell).

3. **Recognize the Composition of Cell Walls**:
- The cell walls of sclerenchyma cells are heavily thickened. This thickening is crucial for their function in providing support to the plant.

4. **Determine the Deposition Material**:
- The thickening of sclerenchyma cell walls is primarily due to the deposition of lignin, which is a complex organic polymer.

5. **Evaluate the Options**:
- The question provides four options: subrene, pectin, lignin, and hemicellulose. Among these, lignin is known to be the secondary deposition material that contributes to the hardness and rigidity of sclerenchyma cells.

6. **Conclude the Answer**:
- Therefore, the deposition material of secondary origin found in sclerenchyma cells is **lignin**.

### Final Answer:
**Lignin**

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