1.发酵( fermentation) (参见P99) (1)EMP途径( Embden- Meyerhof pathway) figure 5.17 Fermentation Glycolysis The inset indicates the relationship of fermentation to the overall Glucose nergy-producing processes(a) An overview of fermentation, The irst step is glycolysis, the con- version of glucose to pyruvic acid 2 NAD+ 2 ADP In the second step, the reduced coenzymes from glycolysis or its NADH natives(NADH. NADPh nate their electrons and hydro- gen ions to pyruvic acid or a derivative to form a fermentation 2 Pyruvic acid d-product.(b)End-products of various microbial fermentation fermentation, ATP is gener- ated only during glycolysis 2( NADH Pyruvic acid (or derivative) 2 NAD Formation of fermentation Electron transport chain and end-products chemiosmosis (a)1. 发酵(fermentation) (1)EMP途径（Embden-Meyerhof pathway） （参见P99）