Answer: Attachment to glucuronic acid for water-solubility and bile excretion.
- A Deamination of bilirubin's amino groups to form urea for excretion
- B Attachment to glucuronic acid for water-solubility and bile excretion
- C Esterification of bilirubin with fatty acids for adipose storage
- D Direct packaging of unconjugated bilirubin into bile salts
Correct answer: B. Attachment to glucuronic acid for water-solubility and bile excretion
Explanation: Bilirubin (from RBC breakdown) is conjugated with glucuronic acid in liver (becoming water-soluble), excreted in bile, and gives feces brown color.
The human digestive system. Image: LadyofHats (Mariana Ruiz), Public Domain, via Wikimedia Commons.
Concept context
The digestive tract, digestive enzymes, hormonal control of digestion, and liver function. High NEET weightage.