13.2 intracellular and non-hydrolytic enzymes L-ala← NAD+ Formate Alanine Formate dehydro- dehydro- Pyruvate genase NADH+ genase →c02 +NH3 G6-P4 ADP Hexo- Acetyl- Acetyl-P kinase kinase Glucose. ATP+ Acetate Examples of enzymatic regeneration of co-enzymes.13.2 intracellular and non-hydrolytic enzymes