Four ways of substrate dehydrogenation

EMP pathway, HM pathway, ED pathway, tca cycle

The four pathways of substrate dehydrogenation are EMP pathway, HM pathway, ED pathway and phosphoketolase. EMP pathway is a preparation stage that does not involve redox reaction and energy release, and only produces two main intermediate metabolites. HMP pathway is divided into oxidation stage and non-oxidation stage. ED pathway, one molecule of glucose finally splits into pyruvate, one molecule of ATP, one molecule of NADH and NADH. ED pathway can exist independently of EMP and HMP pathway. Tca cycle is that pyruvate decarboxylates to acetyl-CoA and then enters tricarboxylic acid cycle, and acetyl-CoA and oxaloacetic acid condense to generate citric acid and then enter tricarboxylic acid cycle.

Dehydrogenation refers to the dehydrogenation reaction of organic compound molecules at high temperature in the presence of catalyst or dehydrogenation agent. Dehydrogenation is a form of elimination reaction and oxidation reaction.