This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
In metabolism of xenobiotics, all of the following reaction occur in phase one except 
Select and explain. 
A. Oxidation, B. Reduction, C. Conjugation, D. Hydrolysis
C: Conjugation
Answer: C: Conjugation 
Explanation: Metabolic reactions are classified as phase 1(non-synthetic) and phase 11 (synthetic) reactions . Phase 1 reaction include oxidation, reduction ,hydrolysis cyclization and decyclization etc Phase 11 reaction include glucorinidation, acetylation, motivation, sulfation and glycine conjugation Refer KDT 7/e p22-24