Final answer:
Glycolysis followed by cellular respiration generates the most ATP, with 36-38 molecules per glucose, compared to fermentation which yields only 2 ATP per glucose due to the lack of an electron transport system.
Step-by-step explanation:
Glycolysis with Cellular Respiration VS Glycolysis with Fermentation
When comparing glycolysis with cellular respiration and glycolysis with fermentation, tThe procedure that generates the most molecules of ATP is glycolysis followed by cellular respiration. During glycolysis alone, regardless of whether it continues to fermentation or cellular respiration, a net gain of two ATP molecules per glucose molecule is produced. However, with cellular respiration, glycolysis leads into the Krebs cycle and oxidative phosphorylation, allowing a significant increase in ATP production through chemiosmosis. Approximately 36-38 ATP molecules can be yielded through this aerobic process.
If oxygen is not available, fermentation can occur after glycolysis, but it does not involve an electron transport system and does not directly produce additional ATP beyond the two molecules formed during glycolysis through substrate-level phosphorylation. Consequently, fermentation leads to a much lower yield of ATP compared to cellular respiration.