The fat present in our food is completely digested in the :

Options

A. stomach
B. mouth
C. small intestine
D. large intestine

Answer

**Step-by-Step Solution:**

1. **Understanding Digestion**: Digestion is the process of breaking down complex food substances into simpler forms that can be absorbed by the body. This process occurs in different parts of the digestive system.

2. **Identifying the Digestive System Components**: The digestive system consists of the alimentary canal (which includes the mouth, esophagus, stomach, small intestine, and large intestine) and associated glands that secrete digestive enzymes.

3. **Where Digestion Starts**: Digestion begins in the mouth, where enzymes like amylase start breaking down carbohydrates. However, fats are not digested in the mouth.

4. **Role of the Stomach**: In the stomach, pepsin is the enzyme responsible for protein digestion, but again, fats are not digested here.

5. **Focus on the Small Intestine**: The small intestine is the primary site for the complete digestion of fats. The enzyme responsible for fat digestion is lipase, which breaks down fats into fatty acids and glycerol.

6. **Absorption of Nutrients**: After digestion in the small intestine, the nutrients (like glucose, amino acids, fatty acids, and glycerol) are absorbed into the bloodstream.

7. **Conclusion**: The complete digestion of fats occurs in the small intestine, making it the correct answer to the question.

**Final Answer**: The fat present in our food is completely digested in the **small intestine**.

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