Fermentation glycolysis

ATP-proton motive force interconversion Electron transport Entner-Doudoroff Fermentation Glycolysis/gluconeogenesis Pentose phosphate pathway Pyruvate dehydrogenase Sugars TCA cycle Methanogenesis Polysaccharides Other... 

Anaerobic respiration only has two steps glycolysis and fermentation. Glycolysis again converts glucose into pyruvate. But in the absence of oxygen, fermentation converts pyruvate into ethanol, lactic acid, or a variety of other products, depending on the organism involved. 

See also Anaerobic Glycolysis, Lactate Fermentation, Glycolysis, NADH, NAD+, Gluconeogenesis Precursors... 

Discuss the cycling of NADH and NAD in glycolysis and the related fermentation reactions. 

It was originally thought that microbial fermentation by Aspergillus terreus followed a similar pattern in that dtric add - produced by glycolysis plus the bridging reaction and two Dathwavs rst reaction of the TCA cyde - was converted to aconitic add. This compound was... 

However in the absence of O2, anaerobic glycolysis—fermentation—produces only 2 mol of ATP per mol of glucose consumed. In the absence of O2 the mitochondrial cytochrome chain ceases to operate and as a resnlt NADH2 accumnlates... 

A quantitative index describing the effect of the absence or presence of molecular oxygen on the rate of glycolysis or fermentation ... 

In this chapter we describe the individual reactions of glycolysis, gluconeogenesis, and the pentose phosphate pathway and the functional significance of each pathway. We also describe the various fates of the pyruvate produced by glycolysis they include the fermentations that are used by many organisms in anaerobic niches to produce ATP and that are exploited industrially as sources of ethanol, lactic acid, and other... 

Yeast and other microorganisms ferment glucose to ethanol and C02, rather than to lactate. Glucose is converted to pyruvate by glycolysis, and the pyruvate is converted to ethanol and C02 in a two-step process ... 

Terms in bold are defined glycolysis 522 fermentation 522 lactic acid fermentation hypoxia 523 ethanol (alcohol) fermentation 523 isozymes 526... 

Oxidative phosphorylation produces most of the ATP made in aerobic cells. Complete oxidation of a molecule of glucose to C02 yields 30 or 32 ATP (Table 19-5). By comparison, glycolysis under anaerobic conditions (lactate fermentation) yields only 2 ATP per glucose. Clearly, the evolution of oxidative phosphorylation provided a tremendous increase in the energy efficiency of catabolism. Complete oxidation to C02 of the coenzyme A derivative of palmitate (16 0), which also occurs in the mitochondrial matrix, yields 108 ATP per palmitoyl-... 

Figure 10-3 Coupling of the reactions of glycolysis with formation of lactic acid and ethanol in fermentations. Steps a to g describe the Embden-Meyerhof-Parnas pathway. Generation of 2 ATP in step b can provide all of the cell s energy.

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