Which of the following polysaccharides is not a polymer of glucose?

Options

A. Amylose
B. Inulin
C. Glycogen
D. Cellulose

Answer

To determine which of the following polysaccharides is not a polymer of glucose, we will analyze each option provided: Amylose, Insulin, Glycogen, and Cellulose.

### Step-by-Step Solution:

1. **Understanding Polysaccharides**:
- Polysaccharides are long chains of monosaccharides (sugar units) linked together. They can be homopolymers (made of one type of monosaccharide) or heteropolymers (made of different types of monosaccharides).

2. **Analyzing Each Option**:
- **Amylose**:
- Amylose is a type of starch and is a linear polymer made up entirely of glucose units. Therefore, it is a polymer of glucose.
- **Glycogen**:
- Glycogen is the storage form of glucose in animals. It is also a polymer made entirely of glucose units. Thus, it is a polymer of glucose.
- **Cellulose**:
- Cellulose is a structural component in plant cell walls and is made up of glucose units linked together. Hence, it is also a polymer of glucose.
- **Insulin**:
- Insulin is a hormone produced by the pancreas that regulates blood glucose levels. It is not a polysaccharide but rather a protein composed of amino acids. It does not consist of glucose units, making it the correct answer to the question.

3. **Conclusion**:
- Among the options given, the polysaccharide that is not a polymer of glucose is **Insulin**.

### Final Answer:
**Insulin** is the polysaccharide that is not a polymer of glucose.

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