Let's take a closer look at glycolysis. This is a 10-step pathway common to the processes of aerobic respiration, anaerobic respiration, and fermentation. Glycolysis begins with glucose, which is phosphorylated and energized by the expenditure of 2 molecules of ATP. It is split
nto two 3-carbon molecules, which are oxidized, resulting in the formation of 2 molecules molecules of reduced NAD (NADH). During the latter steps of glycolysis, energy is released by: several molecular rearrangements and used to phosphorylate 4 ADP to form 4 ATP. The end-products
f glycolysis are 2 molecules of pyruvic acid, 1,2 molecules of NADH, and 2 (net) molecules of ATP.
