This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of carbohydrate, Subject name: Biochemistry
[{'content': 'Benedict test is for \nSelect and explain. \nA. Bile salts in urine, B. Bile pigment in urine, C. Reducing sugar in urine, D. Ketone bodies in urine', 'role': 'user'}, {'content': 'Answer: C \nExplanation: It is commonly employed to detect the presence of glucose in urine. Benedict&;s reagent contains sodium carbonate, copper sulfate, and sodium citrate. In alkalain medium, sugars form enediol, cupric ions are reduced, correspondingly sugar is oxidized. Glucose is a reducing sugar. Any sugar with free aldehyde/keto group will reduce Benedict&;s reagent.Ref: DM Vasudevan, 7th edition, page no: 73', 'role': 'assistant'}]