A polysaccharide of cartilage is

Options

A. chondritin
B. ossein
C. chondritin sulphate
D. cartilagin

Answer

**Step-by-Step Solution:**

1. **Identify the Type of Molecule**: The question asks for a polysaccharide found in cartilage. We need to determine which polysaccharide is specifically associated with cartilage.

2. **Understanding Polysaccharides**: Polysaccharides are long chains of monosaccharide units (sugars) linked together. In the context of cartilage, we are looking for a specific polysaccharide that serves a structural role.

3. **Recognize the Key Polysaccharide**: The polysaccharide present in cartilage is known as **chondroitin**. It is a repeating unit of sugars.

4. **Components of Chondroitin**: Chondroitin is made up of two main sugar components:
- **N-acetylgalactosamine**
- **Glucuronic acid**

5. **Structure of Chondroitin**: Chondroitin consists of repeating units of these sugars, which can number up to 100 sugar units in length.

6. **Sulfation**: The sugars in chondroitin can be sulfated at various positions, leading to the formation of **chondroitin sulfate**. This sulfation is crucial for its function.

7. **Function of Chondroitin Sulfate**: Chondroitin sulfate is an important structural component of cartilage, providing resistance and support, especially in the context of wounds and overall cartilage integrity.

8. **Conclusion**: Based on the above points, the polysaccharide of cartilage is **chondroitin sulfate**.

**Final Answer**: The polysaccharide of cartilage is **chondroitin sulfate**.

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