Cellular Respiration gives both plant and animal cells the useable energy, aka ATP, that they need to do stuff. ATP Synthase is a type of an enzyme that makes ATP continuously for the reactions and cellular respiration. The NADH and FADH2 formed during redox reactions of glycolysis and Kreb's cycle are oxidized through the electron transport chain and drive the synthesis of up to 32 ATPs. It's important to know how many ATP, or adenosine triphosphate, are produced per glucose molecule by various metabolic pathways, such as the Krebs cycle, fermentation, glycolysis, electron transport, and chemiosmosis.Take a look at how many net ATP are produced per pathway and which yields the most ATP per glucose. Glycolysis and Kreb's cycle are first and second stages of cellular respiration respectively. Glycolysis can occur with or without oxygen. The electron transport chain is the last stage of the respiration pathway. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. Consequently, which of the three stages of cellular respiration produces the most ATP? The stage of cellular respiration which yields the most ATP is the electron transport chain. 2FADH2 is accepted from the Krebs cycle. The protein ATP synthase uses the energy produced by the electron transport chain for the phosphorylation (adding a phosphate group to a molecule) of ADP to ATP. Electron transport begins with several molecules of NADH and FADH 2 from the Krebs cycle and transfers their energy into as many as 34 more ATP molecules. Cellular respiration produces 36 total ATP per molecule of glucose across three stages. Glycolysis produces two ATP molecules, and the Krebs cycle produces two more. Posted on January 11, 2021 by January 11, 2021 by Answer to: What phase of cell respiration produces the most ATP? In the presence of oxygen, glycolysis is the first stage of cellular respiration. ←Full Sourdough Class May 8th 2021 in Bethania Qld. We can describe each stage's ATP production. In the absence of oxygen, glycolysis allows cells to make small amounts of ATP through a process of fermentation. How much ATP is produced in all three stages combined? This is the overall equation: C6H12O6(glucose) + 6O2 → 6CO2 + 6H2O + ≈38 ATP a. 10 NADH is of 2 molecules from Glycolysis, 8 molecules from the Krebs cycle. what stage of cellular respiration produces the most atp. Each of these stages produces 2 ATPs from substrate level phosphorylation. Glycolysis produces 2 ATP molecules, and the Krebs cycle produces 2 more. It is the stage that produces the most ATP molecules. You have seen how the three stages of aerobic respiration use the energy in glucose to make ATP. -Cellular respiration uses energy in glucose to make ATP. 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