This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pharmacology, Subject name: Pharmacology
All of the following results in detoxification of drugs EXCEPT: 
Select and explain. 
A. NADPH cytochrome P450 reductase, B. Cytochrome P450, C. Cytochrome oxidase, D. Monooxygenase
C: Cytochrome oxidase
Answer: C: Cytochrome oxidase 
Explanation: Oxidative reactions are mostly carried out by a group of monooxygenases in the liver, which in the final step involve a cytochrome P-450 hemoprotein, NADPH, cytochrome P-450 reductase More than 100 cytochrome P450 isoenzymes differing in their affinity for various substrates (drugs), have been identified cytochrome oxidase is involved in the respiratory electron transpo chain, not drug metabolism KD Tripathi Essentials of medical pharmacology -7th edition; pg no-23