Glycolysis
Glycolysis is a central metabolic pathway involving metabolism of the sugar glucose. Figure 13.3 shows an overview of the process, being divided into a phase in which ATP energy is invested (see here) and a phase in which ATP energy is generated (see here). The starting point for glycolysis is the molecule glucose and the process ends with formation of two pyruvate molecules. Additional products of glycolysis include two ATPs and two NADHs.