Emulsification of fats by bile juice takes place in

Options

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

Answer

To answer the question "Emulsification of fats by bile juice takes place in," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Bile Juice**: Bile juice is a digestive fluid produced by the liver and stored in the gallbladder. It is primarily composed of bile salts, bilirubin, cholesterol, and electrolytes.

2. **Function of Bile Juice**: The main function of bile juice is to emulsify fats. Emulsification is the process of breaking down large fat globules into smaller droplets, which increases the surface area for enzymes to act on.

3. **Where Bile is Secreted**: Bile is secreted into the small intestine, specifically into the duodenum. The duodenum is the first part of the small intestine that receives chyme from the stomach.

4. **pH Considerations**: Bile is an alkaline fluid, and it is important that it is secreted into the duodenum rather than the stomach. The stomach has an acidic environment (low pH), and if bile were to enter there, it would neutralize the acidic conditions, hindering the digestive process.

5. **Conclusion**: Therefore, the emulsification of fats by bile juice takes place in the duodenum.

### Final Answer:
Emulsification of fats by bile juice takes place in the **duodenum**.

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