Green colour of bile is due

Options

A. Biliverdin
B. Bilirubin
C. Sodium taurocholate
D. Sodiumn glycocholate

Answer

### Step-by-Step Solution:

1. **Understanding Bile Composition**: Bile is a digestive fluid produced by the liver, primarily composed of water, bile salts, bile pigments, and fats. The main components include:
- Water (97-98%)
- Bile salts (0.2-0.7%)
- Bile pigments (0.2%)
- Fats (0.5%)

2. **Identifying Bile Pigments**: Bile contains two primary pigments:
- **Bilirubin**: This pigment is orange to yellow in color.
- **Biliverdin**: This pigment is green in color.

3. **Source of Bile Pigments**: Both bilirubin and biliverdin are formed from the breakdown of red blood cells (RBCs).

4. **Determining the Color of Bile**: The green color of bile is attributed to the presence of biliverdin. While bilirubin contributes to the overall color of bile, it is biliverdin that specifically gives bile its green hue.

5. **Conclusion**: Therefore, the green color of bile is due to biliverdin, making it the correct answer to the question.

### Final Answer:
The green color of bile is due to **biliverdin**.

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