Antibacterial agent present in saliva is

Options

A. Lysozyme
B. Mucin
C. Water
D. `Cl^(-)`

Answer

**Step-by-Step Solution:**

1. **Understanding Saliva Composition**: Saliva is produced by three pairs of salivary glands: the parotid, submandibular (or submaxillary), and sublingual glands. It is important to know the components of saliva to identify the antibacterial agent.

2. **Identifying Components of Saliva**: Saliva contains water, electrolytes (such as sodium, potassium, chloride, and bicarbonate ions), enzymes, and other substances.

3. **Recognizing the Role of Enzymes**: Among the enzymes present in saliva, salivary amylase and lysozyme are significant. Salivary amylase breaks down starch into maltose, while lysozyme has a different function.

4. **Defining the Function of Lysozyme**: Lysozyme is known for its antibacterial properties. It helps to prevent infections by breaking down the cell walls of certain bacteria, thus acting as an antibacterial agent.

5. **Choosing the Correct Answer**: Given the options (A- lysozyme, B- mucin, C- water, D- chlorite), the correct answer is A- lysozyme, as it specifically serves as the antibacterial agent in saliva.

**Final Answer**: The antibacterial agent present in saliva is **lysozyme**.

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