This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'The type of enzyme inhibition in which xanthine oxidase is inhibited by allopurinol is an example of: \nSelect and explain. \nA. Noncompetitive, B. Uncompetitive, C. Allosteric, D. Suicidal', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Suicide Inhibition:\n\nOtherwise called mechanism based inactivation.\nSpecial class of irreversible inhibition.\nInhibitors are relatively unreactive,\xa0until they bind with the active site of specific enzyme.\nOnce the inhibitor binds to the enzyme, by the action of the enzyme, it is converted to a potent inhibitor enzyme.\n\nExamples of Suicide Inhibition:\n\nAllopurinol inhibit Xanthine Oxidase. Allopurinol\xa0converted to\xa0alloxanthine\xa0which irreversibly inhibit the enzyme.\n\nReference-\xa0 Satyanarayana Pg-95', 'role': 'assistant'}]