Explore BrainMass

Anaerobic Cellular Respiration: Pyruvate Conversion Products

If the conversion of pyruvate to lactate or ethanol and CO2 doesn't yield any energy for anaerobic cells, why do they do it?

Please keep answer short and precise as possible!!!!!

Solution Preview

The fundamental reason is that oxygen is not required. The ability to survive without oxygen affords a host of living accommodations such as soils, deep water, and skin pores.

In the absence of oxygen, glucose is not converted entirely to CO2 but to one or more two- or three-carbon compounds, and only in some cases to CO2. For instance, yeasts degrade glucose to two pyruvate molecules via glycolysis, generating a ...