<prompt> Dehydrogenases use as coenzymes all of the following, exceptFMNFADNADOPFerriprotoporphyrin  <response>: This group of enzymes will catalyze the oxidation of one substrate with simultaneous reduction of another substrate or coenzyme. This may be represented as AH2 B --- A BH2 for example, Alcohol NAD --- Aldehyde NADH H The enzyme is Alcohol dehydrogenase; IUB name is Alcohol-NAD-oxidoreductase; Code number is EC.1.1.1.1. Oxidoreductases may also oxidize substrates by adding oxygen, e.g. oxidases, oxygenases, and dehydrogenasesRef: DM Vasudevan, Page no: 41 