Maximum digestion takes place in ?

Options

A. Duodenum
B. Jejunum
C. Ileum
D. Colon

Answer

To determine where maximum digestion takes place in the human digestive system, we need to analyze the different parts of the small intestine and their roles in digestion.

### Step-by-Step Solution:

1. **Identify the Parts of the Small Intestine**:
The small intestine is divided into three main parts:
- Duodenum
- Jejunum
- Ileum

2. **Understand the Function of Each Part**:
- **Duodenum**: This is the first part of the small intestine where most of the chemical digestion occurs. It receives bile from the liver and pancreatic juices, which contain enzymes that help break down food.
- **Jejunum**: This is the middle section of the small intestine, primarily involved in the absorption of nutrients.
- **Ileum**: This is the final part of the small intestine, which is mainly responsible for the absorption of vitamin B12 and bile salts.

3. **Determine Where Maximum Digestion Occurs**:
Based on the functions of each part, the duodenum is where the majority of digestion takes place due to the presence of digestive enzymes and bile.

4. **Conclusion**:
Therefore, the correct answer to the question "Maximum digestion takes place in?" is the **Duodenum**.

### Final Answer:
Maximum digestion takes place in the **Duodenum**.