The substances that forms the plant cell walls is or which carbohydrates is an essential constituents of plant cells

Options

A. Cellulose
B. Sucrose
C. Vitamins
D. Starch

Answer

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

1. **Identify the Question**: The question asks about the substance that forms the plant cell walls and which carbohydrate is an essential constituent of plant cells.

2. **Understanding Plant Cell Walls**: The primary component of plant cell walls is a carbohydrate.

3. **Identify the Carbohydrate**: The carbohydrate that is essential for plant cell walls is cellulose.

4. **Characteristics of Cellulose**:
- Cellulose is a structural carbohydrate.
- It is classified as a complex sugar due to its structure and function.
- Cellulose provides both protection and structural support to the plant cells.

5. **Structure of Cellulose**:
- Cellulose is made up of long chains of beta-D-glucose units.
- These glucose units are linked together by β(1→4) glycosidic bonds, forming a linear chain.

6. **Conclusion**: Therefore, the substance that forms the plant cell walls is cellulose, which is an essential carbohydrate constituent of plant cells.

**Final Answer**: The carbohydrate that is an essential constituent of plant cells and forms the plant cell walls is cellulose.

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