This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Structure and function of protein, Subject name: Biochemistry
[{'content': 'Which of the following enzymes does not contain Zn \nSelect and explain. \nA. Alcohol Dehydrogenase, B. Arginase, C. Alkaline Phosphatase, D. Carbonic Anhydrase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Zinc is required for the activity of > 300 enzymes, covering all six classes of enzymes.Alcohol dehydrogenaseSuperoxide dismutaseTransferases like RNA polymerase and Aspaate transcarbamoylaseHydrolases like carboxypeptidase A and thermolysinLyases like Carbonic anhydrase and Fructose-1,6-bisphosphate aldolaseIsomerases like phosphomannose isomerase and Ligases like pyruvate carboxylase and aminoacyl-tRNA synthasesRef: Harper&;s Biochemistry; 30th edition', 'role': 'assistant'}]