The greenish colour of bile is due to

Options

A. Biliverdin and bilirubin
B. Melanin
C. Haematochrome
D. All of the above

Answer

To answer the question about the greenish color of bile, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Composition of Bile**: Bile is a digestive fluid produced by the liver and stored in the gallbladder. It plays a crucial role in the digestion of fats.

2. **Identify the Pigments in Bile**: Bile contains two primary pigments that contribute to its color: bilirubin and biliverdin.

3. **Analyze the Colors of the Pigments**:
- **Bilirubin**: This pigment is typically yellow in color.
- **Biliverdin**: This pigment is greenish in color.

4. **Determine the Overall Color of Bile**: The combination of bilirubin and biliverdin gives bile its characteristic greenish-yellow color. However, the greenish hue is primarily due to the presence of biliverdin.

5. **Review the Answer Choices**: The options given were:
- a. biliverdin and bilirubin
- b. melanin
- c. hematochrome
- d. all of the above

6. **Select the Correct Answer**: Since the greenish color of bile is mainly attributed to biliverdin and bilirubin, the correct answer is option A: biliverdin and bilirubin.

### Final Answer:
The greenish color of bile is due to **biliverdin and bilirubin** (Option A).

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