Lysozyme occurs in

Options

A. Tears
B. Tears and saliva
C. Tears , saliva , sweat and mucus
D. Gastric juice

Answer

**Step-by-Step Solution:**

1. **Understanding Lysozyme**: Start by defining what lysozyme is. It is an enzyme that has antibacterial properties, meaning it helps to kill bacteria.

2. **Sources of Lysozyme**: Identify where lysozyme is produced in the human body. It is produced in various secretions such as tears, saliva, sweat, and mucus.

3. **Analyzing the Options**:
- **Option 1: Tears** - Lysozyme is present in tears.
- **Option 2: Tears and Saliva** - Lysozyme is also present in saliva.
- **Option 3: Tears, Saliva, Sweat, and Mucus** - This option includes all the correct sources of lysozyme.
- **Option 4: Gastric Juice** - Lysozyme is not found in gastric juice.

4. **Selecting the Correct Answer**: Since lysozyme occurs in tears, saliva, sweat, and mucus, the most comprehensive answer is option 3.

5. **Conclusion**: Therefore, the correct answer is option 3, which states that lysozyme occurs in tears, saliva, sweat, and mucus.

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