Describe the enzymatic action on fats in the duodenum.

Explanation

### Step-by-Step Text Solution:

1. **Introduction to Fat Digestion**:
- The digestion of fats primarily occurs in the duodenum, which is the first section of the small intestine. Here, fats are emulsified and broken down by enzymes.

2. **Role of Bile**:
- Before enzymatic action can take place, bile, produced by the liver and stored in the gallbladder, is released into the duodenum. Bile contains bile salts that emulsify fats, breaking them into smaller droplets. This increases the surface area for enzymes to act upon.

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