<prompt> All are cofactors for Dehydrogenase except:NADPFADNADSAM  <response>: Dehydrogenases - remove H2 and which is usually taken up by their cofactors: 1. FAD - FADH2 - ETC 2. NAD - NADH - ETC 3. NADP - NADPH NADPH - used in anabolic pathway - SAM S - Adenosyl Methionine Donor of methyl group is a nucleotide but not a cofactor. 