Intrinsic factor is produced in

Options

A. Liver
B. Pancreas
C. Duodenum
D. Stomach

Answer

**Step-by-Step Solution:**

1. **Understanding Intrinsic Factor**: Intrinsic factor is a glycoprotein that plays a crucial role in the absorption of vitamin B12 in the intestines.

2. **Identifying the Source**: To determine where intrinsic factor is produced, we need to identify the cells responsible for its production.

3. **Locating the Cells**: Intrinsic factor is produced by parietal cells. These cells are located in the gastric glands of the stomach.

4. **Evaluating the Options**:
- A. Liver: The liver does not produce intrinsic factor.
- B. Pancreas: The pancreas is involved in digestion but does not produce intrinsic factor.
- C. Geogenome: This option seems incorrect or irrelevant in this context.
- D. Stomach: The stomach contains parietal cells that produce intrinsic factor.

5. **Conclusion**: Since intrinsic factor is produced by parietal cells in the stomach, the correct answer is option D: Stomach.

**Final Answer**: D. Stomach

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