ANAEROBIC GLYCOLYSIS AND FERMENTATIONS 



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ATP 



ATP 



2 ADP 



2 ADP 



2 NADH 



Glucose^ 



glucose- 



-*- ADP 



glucose-6-P 



-*- glucose + Pj 



fructose-6-P 



fructose- 1, 6-diP 



-^ ADP 



-»~ fructose-6-P + P, 



2 3-phosphoglyceraldehyde ■ < * dihydroxyacetone-P 

 2 NAD + 2 P^ »- 1 I *- 2 NADH 



2 1, 3 -diphosphogly cerate 



-^ 2 ATP 



2 3-phosphoglycerate 



2 2-phosphoglycerate 



2 phosphoenolpyruvate 



11 



^- 2 ATP 



2 pyruvate 



-^ 2 NAD 



2 lactate 

 Scheme 1. Anaerobic glycolysis. 



(B) The steady-state levels of 3-phosphoglyceraldehyde and dihydroxy- 

 acetone-P will remain the same or increase somewhat, while the hexose 

 phosphates will continue to be formed as long as there is ATP and will in- 

 crease in concentration roughly according to equilibria between them. 



(C) The ATP level will fall due to hexose phosphorylation (and perhaps 

 to ATPase activity or utilization of the ATP in other ways), and this will 



