A lubricant mucin, in salvia is made up of

Options

A. polyunsaturated fats
B. actin and myosin
C. glycoproteins
D. phospholipids.

Answer

To answer the question "A lubricant mucin, in saliva is made up of," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Saliva Composition**:
- Saliva is primarily composed of 99.5% water and 0.5% other components, including mucin, enzymes, and lysozymes.

2. **Identifying Mucin**:
- Mucin is a glycoprotein that serves as a lubricant in saliva, aiding in the smooth passage of food during swallowing.

3. **Determining the Composition of Mucin**:
- Mucin is primarily made up of polysaccharides. These are long chains of sugar molecules that contribute to the viscous and lubricating properties of saliva.

4. **Evaluating the Options**:
- The options provided include:
- A) Polyunsaturated fats
- B) Actin and myosin
- C) Glycoprotein
- D) Phospholipid
- Among these, the correct answer is that mucin is made up of polysaccharides, which is often classified under glycoproteins.

5. **Conclusion**:
- Therefore, the correct answer to the question is that the lubricant mucin in saliva is made up of polysaccharides.

### Final Answer:
- The lubricant mucin in saliva is made up of **polysaccharides**.

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