Which ones are absorbed in the alimentary canal without any breakdown ?

Options

A. Proteins
B. Polysaccharides
C. Fat soluble vitamins
D. Albumen of egg.

Answer

To answer the question "Which ones are absorbed in the alimentary canal without any breakdown?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Absorption in the Alimentary Canal**:
- The alimentary canal is responsible for the digestion and absorption of nutrients. Some nutrients can be absorbed directly without needing to be broken down into smaller components.

2. **Identifying the Options**:
- The options provided are:
- Proteins
- Polysaccharides
- Fat-soluble vitamins
- Albumin of eggs

3. **Analyzing Each Option**:
- **Proteins**: These are large molecules that must be broken down into smaller peptides and amino acids by enzymes before absorption.
- **Polysaccharides**: These complex carbohydrates need to be broken down into simpler sugars (monosaccharides) through enzymatic action before they can be absorbed.
- **Fat-soluble vitamins**: These include vitamins A, D, E, and K. They are absorbed directly in their intact form without any need for breakdown.
- **Albumin of eggs**: This is a type of protein and, like other proteins, must be digested into smaller peptides and amino acids before absorption.

4. **Conclusion**:
- Based on the analysis, the only option that can be absorbed in the alimentary canal without any breakdown is **fat-soluble vitamins**.

### Final Answer:
The correct option is **fat-soluble vitamins**.

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