Which is mismatched ?

Options

A. Agar-polymer of glucose and sulphur containing carbohydrates
B. Chitin-Polymer of glycosamine
C. Lipopolysaccharides-A complex of lipid and polysaccharide
D. Glycogen -Polymer of glucose.

Answer

To determine which option is mismatched, let's analyze each option provided in the question:

1. **Agar - Polymer of glucose and sulfur-containing carbohydrates**:
- Agar is derived from agarose, which is a polysaccharide found in the cell walls of certain algae. It is primarily composed of carbon, hydrogen, and oxygen, and does not contain sulfur. Therefore, this option is mismatched.

2. **Chitin - Polymer of glucose amine**:
- Chitin is indeed a polysaccharide that consists of N-acetylglucosamine, which is a derivative of glucose. It is a major component of the cell walls of fungi and the exoskeletons of arthropods. This option is correctly matched.

3. **Glycosamine and lipopolysaccharide - A complex of lipid and polysaccharide**:
- Lipopolysaccharides are indeed complexes formed by the covalent linkage of lipids and polysaccharides. This description is accurate, so this option is correctly matched.

4. **Glycogen - Polymer of glucose**:
- Glycogen is a polysaccharide that serves as a form of energy storage in animals and is composed of glucose units linked together. This option is also correctly matched.

Based on the analysis, the mismatched option is:
**Agar - Polymer of glucose and sulfur-containing carbohydrates**.

### Steps Recap:
1. Identify each option and its components.
2. Analyze the composition and characteristics of each substance.
3. Determine if the descriptions match the actual scientific understanding.
4. Conclude which option is mismatched based on the analysis.