This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
[{'content': 'Uronic acid pathway is not involved in: \nSelect and explain. \nA. Conjugation of bilirubin, B. GAG synthesis, C. Vitamin C synthesis, D. Biotransformation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. Vitamin C synthesis(Ref: Harper 31/e page 186)Glucuronic acid is involved in the conjugation of Bilirubin.Uronic acid and amino sugar are the repeating disaccharide unit in the glycosamino glycans.Glucuronidation is a Phase II Xenobiotic reactions (Biotransformation)Uronic acid pathway cannot synthesize vitamin C in humans and higher primates because of lack of L-Gulano lactone oxidase', 'role': 'assistant'}]