Yellow colour of faeces is due to

Options

A. Excessive turmeric
B. Bile
C. Degradation product of haemoglobin
D. None ofthe above

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks why feces have a yellow color. We need to identify the correct reason from the given options: excessive turmeric, bile, degradation of hemoglobin, or none of these.

2. **Analyzing the Options**:
- **Excessive Turmeric**: While turmeric can impart a yellow color to food and potentially to feces, it is not the primary reason for the yellow color of feces in general.
- **Bile**: Bile is a digestive fluid produced by the liver and stored in the gallbladder. It is primarily involved in the emulsification of fats. Although bile has a greenish-yellow color, it does not directly cause the yellow color of feces.
- **Degradation of Hemoglobin**: When red blood cells (RBCs) are broken down, hemoglobin is released. The heme part of hemoglobin is converted into bilirubin, which is a yellow pigment. This bilirubin is then excreted in feces, contributing to its yellow color.
- **None of These**: This option can be disregarded since we have identified a valid reason.

3. **Identifying the Correct Answer**: Based on the analysis, the correct answer is the degradation of hemoglobin, which leads to the formation of bilirubin, imparting a yellow color to feces.

4. **Conclusion**: The yellow color of feces is primarily due to the degradation of hemoglobin from destroyed red blood cells, resulting in the production of bilirubin.

### Final Answer:
The yellow color of feces is due to the degradation of hemoglobin.

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