<prompt> Which of the following enzymes does not contain ZnAlcohol DehydrogenaseArginaseAlkaline PhosphataseCarbonic Anhydrase  <response>: 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 