The Pyruvate Dehydrogenase Complex and The $\alpha$ -Ketoglutarate Dehydrogenase Complex Are Homologous Enzyme Assemblies That Require Several

Multiple Choice

The pyruvate dehydrogenase complex and the $\alpha$ -ketoglutarate dehydrogenase complex are homologous enzyme assemblies that require several different coenzymes to carry out their reactions. Which compound does NOT participate directly in the function of these complexes?

A) flavin mononucleotide
B) coenzyme A
C) lipoic acid
D) thiamine pyrophosphate
E) nicotinamide adenine dinucleotide