FTP, identify this molecule produced by glycolysis.
The relative rate of this compound's carboxylation is varied by the YPC model parameter.  In a pathway that regenerates NAD+ from NADH, this triose ketoacid is converted via acetaldehyde into carbon dioxide and ethanol in an anaerobic environment.  It is also anaerobically converted into lactate during muscle contraction, and serves as an important biochemical intermediate by bonding with acetyl coenzyme A to enter the Krebs cycle.  FTP, identify this molecule produced by glycolysis.
The relative rate of this compound's carboxylation is varied by the YPC model parameter.  
pyruvate (DO NOT ACCEPT pyruvic acid)