This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of nucleic acids, Subject name: Biochemistry
[{'content': 'Uric acid is formed by \nSelect and explain. \nA. Catabolism of proteins, B. Catabolism of ketones, C. Catabolism of purines, D. Catabolism of pyrimidines', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Uric acid the end product of purine catabolismis a strong reducing agent. Its role as an antioxidant is paicularly significant in the upper respiratory tract REF : DM VASUDEVAN TEXTBOOK ;8th EDITION ;Page no:547 and 548', 'role': 'assistant'}]