Question

multiple choice question
name the compounds that are converted into bile pigments in the liver.

bilirubin and biliverdin

hemoglobin and ferritin

transferrin and urobilinogen

Explanation:

To solve this, we recall the biochemistry of bile pigment formation. Bile pigments (bilirubin, biliverdin) are derived from the breakdown of hemoglobin. Let's analyze each option:

• Option 1: Bilirubin and biliverdin are bile pigments themselves, not the compounds converted into them. Incorrect.
• Option 2: Hemoglobin is broken down (after red blood cell turnover) into heme, which is then converted to biliverdin and bilirubin (bile pigments) in the liver. Ferritin stores iron (from heme breakdown). This matches the process. Correct.
• Option 3: Transferrin transports iron, and urobilinogen is a product of bilirubin metabolism in the intestine, not the precursors of bile pigments in the liver. Incorrect.

Answer:

B. Hemoglobin and ferritin