Ammonia is formed inside

Options

A. Small intestine
B. Stomach
C. Large intestine
D. Liver

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks where ammonia is formed in the human body. We need to identify the correct organ from the given options: small intestine, stomach, large intestine, or liver.

2. **Analyzing the Options**:
- **Small Intestine**: This organ is primarily responsible for the digestion and absorption of nutrients, not for ammonia production.
- **Stomach**: The stomach is involved in the breakdown of food through acids and enzymes, but it does not synthesize ammonia.
- **Large Intestine**: The large intestine mainly absorbs water and electrolytes and compacts waste. It does not produce ammonia.
- **Liver**: The liver plays a crucial role in metabolism and detoxification. It is known to synthesize ammonia as a byproduct of protein metabolism.

3. **Identifying the Correct Answer**: Based on the functions of each organ, the liver is the only organ among the options that is known to produce ammonia. This occurs during the breakdown of amino acids, where ammonia is generated and subsequently converted into urea for excretion.

4. **Conclusion**: Therefore, the correct answer to the question "Ammonia is formed inside" is the **liver**.

### Final Answer:
**Liver**

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