Clinical biochemistry_Ch13_3377_2024

___________ is the primary source of bilirubin in the body.

• Hemoglobin breakdown

• Myoglobin breakdown

• Breakdown of dietary proteins

• Intestinal bacteria

____________ is the initial form of bilirubin released into the bloodstream from macrophages.

• Conjugated bilirubin

• Unconjugated bilirubin

• Biliverdin

• Urobilinogen

In which organ does the conjugation of bilirubin primarily occur?

• Spleen

• Kidney

• Liver

• Bone marrow

This enzyme is responsible for the conjugation of bilirubin in hepatocytes.

• Bilirubin oxidase

• Glucuronyl transferase

• Bilirubin reductase

• Heme oxygenase

Through which structure is conjugated bilirubin excreted from the liver into the intestine?

• Hepatic vein

• Common bile duct

• Portal vein

• Cystic duct

This compound is responsible for the brown color of feces, derived from the metabolism of bilirubin.

• Stercobilin

• Urobilin

• Biliverdin

• Bilirubin diglucuronide