Bilirubin and Biliverdin are present in :

Options

A. Pancreatic juice
B. Saliva
C. Bile juice
D. Intestinal juice

Answer

**Step-by-Step Solution:**

1. **Understanding the Components**: Bilirubin and biliverdin are pigments that are derived from the breakdown of hemoglobin, which is found in red blood cells (RBCs).

2. **Location of Breakdown**: The breakdown of aged RBCs primarily occurs in the spleen, which is often referred to as the "graveyard" of RBCs.

3. **Formation of Bilirubin and Biliverdin**: During the digestion of these aged RBCs, the heme component of hemoglobin is converted into bilirubin and biliverdin.

4. **Transport to the Liver**: After their formation, bilirubin and biliverdin are transported to the liver for further processing.

5. **Role of the Liver**: The liver processes these pigments and incorporates them into bile, which is essential for digestion.

6. **Final Identification**: The question asks where bilirubin and biliverdin are present. Since they are processed in the liver and found in bile, the correct answer is that they are present in bile juice.

7. **Evaluating Options**:
- Pancreatic juice: Incorrect, as bilirubin and biliverdin are not found here.
- Saliva: Incorrect, as these pigments are not present in saliva.
- Bile juice: Correct, as this is where bilirubin and biliverdin are found.
- Intestinal juice: Incorrect, as these pigments are not found in intestinal juice.

8. **Conclusion**: Therefore, the correct answer is that bilirubin and biliverdin are present in bile juice.

**Final Answer**: Bilirubin and biliverdin are present in bile juice.

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