What is the possible fate of pyruvate?

The possible fates of pyruvate depend on the oxygen availability and the metabolic conditions of the cell: 1) Conversion to Acetyl-CoA in aerobic conditions, entering the citric acid cycle for ATP production. 2) Lactic Acid Fermentation in anaerobic conditions, converting pyruvate into lactate to regenerate NAD+. 3) Alcoholic Fermentation in yeast and some microorganisms, converting pyruvate into ethanol and CO2 to regenerate NAD+.