Which one is differ from the category of other three-

Options

A. Gastrin
B. Glucagon
C. Secretin
D. Ptyalin

Answer

**Step-by-Step Solution:**

1. **Identify the Options**: The options provided are Gastrin, Glucagon, Secretin, and Tylenol.

2. **Classify Each Option**:
- **Gastrin**: This is a hormone produced in the stomach that stimulates the secretion of gastric acid (HCl) and enhances gastric mucus production.
- **Glucagon**: This is a hormone produced by the alpha cells of the pancreas that increases blood glucose levels by promoting the conversion of glycogen to glucose in the liver.
- **Secretin**: This is a hormone released by the intestinal mucosa that stimulates the pancreas to secrete bicarbonate and digestive enzymes.
- **Tylenol**: This is not a hormone; it is a common name for acetaminophen, a medication used to relieve pain and reduce fever. It is not involved in the digestive process like the others.

3. **Determine the Odd One Out**: Upon classification, it is clear that Gastrin, Glucagon, and Secretin are all hormones involved in various aspects of digestion and metabolism, while Tylenol is a medication and not a hormone.

4. **Conclusion**: Therefore, the option that differs from the category of the other three is **Tylenol**.

**Final Answer**: The odd option is **Tylenol** (Option 4).

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