Chemical energy may be potential energy, or energy released through a chemical reaction.
Chemical reaction tend to be reversible, occur to the state where forward and backwards are occurring at the same rate. This is known as chemical equilibrium.
Fermentation is a catabolic process that partially degrades sugars without using oxygen.
Glycolysis, Pyruvate Oxidation/Citric Acid Cycle, and Oxidative Phosporylation are the three metabolic stages to cellular respiration.
