Final answer:
Glycolysis produces a net gain of two ATP molecules, two NADH molecules, and two pyruvate molecules from each glucose molecule.
Step-by-step explanation:
The breakdown of glucose by glycolysis results in the net production of two types of molecules. For each glucose molecule that undergoes glycolysis, the cell gains two ATP molecules, two NADH molecules, and two pyruvate molecules. Glycolysis is the initial pathway of glucose metabolism and takes place in the cytoplasm of cells. A detailed breakdown shows that during glycolysis, a total of four ATP molecules are produced, but two are used during the initial steps, resulting in a net gain of two ATPs. Additionally, two molecules of NADH are generated, which can later be used in the electron transport chain to create more ATP under aerobic conditions.