Which of the following is absorbed in ileum-

Options

A. Fat
B. Bile salts
C. Vit-k
D. Glucose

Answer

To determine which substances are absorbed in the ileum, we need to analyze the options provided and understand the absorption processes that occur in the ileum.

### Step-by-Step Solution:

1. **Identify the Absorption Site**: The ileum is the final part of the small intestine, where the absorption of various nutrients takes place. It is important to know what substances are typically absorbed in this region.

2. **Evaluate the Options**:
- **Option 1: Fat** - Fats are primarily emulsified and absorbed in the duodenum, not the ileum. Therefore, this option is incorrect.
- **Option 2: Bile Salts** - Bile salts are indeed reabsorbed in the ileum. After emulsifying fats, about 90-95% of bile salts are reabsorbed here and then transported back to the liver through the hepatic portal system for recycling. This option is correct.
- **Option 3: Vitamin K** - While Vitamin K is important for blood clotting and is a fat-soluble vitamin, it is primarily absorbed in the jejunum, not specifically in the ileum. Thus, this option is incorrect.
- **Option 4: Glucose** - Glucose is absorbed mainly in the jejunum through active transport mechanisms, not in the ileum. Therefore, this option is also incorrect.

3. **Conclusion**: Based on the analysis, the only substance that is absorbed in the ileum from the provided options is bile salts.

### Final Answer:
The correct answer is **Bile Salts** (Option 2).

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