<prompt> All of the following enzymes are involved in oxidation - reduction reactions, exceptDehydrogenasesHydrolasesOxygenasesPeroxidases  <response>: Oxidoreductases enzymes involved in oxidation - reduction reactions are : dehydrogenases, oxidases, hydroperoxidases catalase, peroxidase, oxygenases, reductases and hydroxylases not hydrolases. 