ATP Production

ATP Production Metabolism, which encompasses glycolysis, the Kreb’s cycle, and the electron transport system, occurs in the mitochondria of cells. The mitochondria consist of a double membrane and an inner compartmentalization called the matrix. Each of the processes of metabolism occurs in specific locations in and around the mitochondria. The process of glycolysis occurs in the cytoplasm just outside the outer membrane of the mitochondria. The Kreb’s cycle occurs within the matrix and …

…energy derived from these protons phosphorylates an inorganic phosphate to an ADP in the matrix, forming an ATP. The hydrogen ions react with the oxygen that accepted the released electrons and forms water. The ETS will produce 34 ATP’s in this manner from just one glucose molecule that has passed through glycolysis, the intermediate step, and the Kreb’s cycle. Thus, with all of the processes combine, 38 ATP’s are produced from one glucose molecule.