Cell wall of Spirogyra is composed of

Options

A. Peptidoglycan
B. Pectin
C. Cellulose
D. Both (2) & (3)

Answer

**Step-by-Step Text Solution:**

1. **Identify the Organism**: The question refers to Spirogyra, which is a type of green algae.

2. **Understand Cell Wall Composition**: Algae generally have a cell wall composed of various substances, including cellulose, galactans, manans, and some minerals.

3. **Specific Composition of Spirogyra**: In the case of Spirogyra, its cell wall is specifically made up of two main components: cellulose and pectin.

4. **Layer Structure**: The cell wall of Spirogyra has a layered structure where:
- **Cellulose** forms the inner layer.
- **Pectin** forms the outer layer.

5. **Function of Pectin**: The presence of pectin on the outer surface makes the cell wall slippery, allowing Spirogyra to move easily over surfaces.

6. **Conclusion**: Therefore, the correct answer to the question is that the cell wall of Spirogyra is composed of both cellulose and pectin.

**Final Answer**: The cell wall of Spirogyra is composed of cellulose and pectin.

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