<prompt> Bilirubin is synthesized fromAmino acidHemoglobinMyoglobinWBCs  <response>: Ans. B HemoglobinRef: Quantitative Human Physiology; An Introduction.pg. 432-33 An average weighing adult turns over approx 6 gm of Hb daily 1 g of Hb yield - 35 mg of Bilirubin Therefore daily bilirubin formation in an adult is approx 250-350 mg 