Final answer:
ATP is indeed produced during glycolysis, with a net gain of two ATPs per glucose molecule under anaerobic conditions. In aerobic respiration, ATP may be used for transporting NADH into the mitochondria, and the total ATP yield from one glucose molecule can reach 38 but is typically lower.
Step-by-step explanation:
Yes, ATP is made in glycolysis. During the process of glycolysis, a total of four ATP molecules are produced through substrate-level phosphorylation. However, two ATPs are consumed in earlier steps of glycolysis for the activation of glucose, resulting in a net gain of two ATPs. It is important to note that this net gain is under anaerobic conditions. In aerobic respiration, glycolysis is just the first stage, and additional ATP is produced through the Krebs cycle and electron transport chain.
Under aerobic conditions, the ATP produced by glycolysis may also be used for transporting the NADH from glycolysis into the mitochondria, which can affect the net ATP yield. Ultimately, in aerobic respiration, the entire process can theoretically yield up to 38 ATP per glucose molecule, but in reality, the yield is typically lower.