Biochemistry All of the following are tightly bound to component enzymes of pyruvate dehydrogenase, EXCEPT A Thiamine pyrophosphate B Lipoic acid C Flavin adenine dinucleotide D Coenzyme A 💡 Explanation All of the following are tightly bound to component enzymes of pyruvate dehydrogenase, EXCEPT ✓ Correct Answer: D. Coenzyme A