Multiple choice

The yellow colour of urine is due to:

  1. urochrome

  2. bilirubin

  3. bilivirdin

  4. xanthophil

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Urochrome (urobilin) is the yellow pigment responsible for urine color, produced as a breakdown product of hemoglobin. Bilirubin and biliverdin are bile pigments excreted in feces (giving stool its brown color), while xanthophil refers to yellow plant pigments.