Cellulose is

Options

A. Tetra saccharide
B. Homopolysaccharide
C. Penta polysaccharide
D. Hetero polysaccharide

Answer

**Step-by-Step Solution:**

1. **Understanding Cellulose**: Cellulose is a type of carbohydrate known as a polysaccharide. It is composed of many glucose units linked together.

2. **Identifying the Type of Polysaccharide**: Among the options provided (tetrasaccharide, homopolysaccharide, pentapolysaccharide, and heteropolysaccharide), we need to determine which one correctly describes cellulose.

3. **Recognizing the Structure of Cellulose**: Cellulose is formed by the linkage of beta-1,4 glycosidic bonds between glucose units. This means that the glucose molecules are connected in a specific way.

4. **Defining Homopolysaccharide**: A homopolysaccharide is a polysaccharide that consists of only one type of monosaccharide. Since cellulose is made entirely of glucose units, it qualifies as a homopolysaccharide.

5. **Eliminating Other Options**:
- **Tetrasaccharide**: This refers to a carbohydrate made up of four monosaccharide units, which does not apply to cellulose.
- **Pentapolysaccharide**: This would imply a polysaccharide made of five monosaccharide units, which is also incorrect for cellulose.
- **Heteropolysaccharide**: This type consists of different types of monosaccharides. Since cellulose is made only of glucose, it cannot be classified as a heteropolysaccharide.

6. **Conclusion**: Based on the analysis, cellulose is a homopolysaccharide, as it consists solely of glucose units linked by beta-1,4 glycosidic bonds.

**Final Answer**: Cellulose is a homopolysaccharide.

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