The Krebs Cycle does not directly produce ATP (unless in bacteria, which produces 1 ATP instead of GTP).
One cycle produces 3 NADH, 1 FADH2 and 1 GTP, which converts to 12 ATP.
The Krebs Cycle produces 24 ATP per glucose molecule.
In a complete Krebs Cycle, 24 ATP are produced. Every glucose molecule produces 2 ATP, and there are 12 glucose molecules.
The Krebs cycle provides the electron transport chain with the necessary molecules (NADH and FADH2) to produce ATP efficiently. Without the Krebs cycle, the electron transport chain would lack the electron carriers needed for ATP synthesis, resulting in minimal ATP production.
Electron transport chain. During electron transport chain 34 ATP molecules are produced whereas glycolysis and citric acid cycle yield 4 ATPs (2 during glycolysis and 2 during citric acid cycle).
It gets produced form glucose aerobic metabolism that consists of 4 steps: 1.glycolisis = 2 ATPs +2 NADH 2.pyruvate oxidative decarboxilation = 1 NADH *2 (because we have 2 pyruvates from the glycolisis) 3. Krebs cycle = (3NADH + 1FADH + 1ATP) * 2 4.Cellular respiration cycle - process where all the NADH and FADH are converted to ATPs. Each NADH = 3ATP, but FADH=2ATP. Thus we get: 1. 8 ATPs 2. 6 ATPs (3*2) 3. 24 ATPs (12*2) --------------------- 38 ATPs
The energy tally from one molecule of pyruvic acid is 4 NADH, 1 FADH₂ and 1 molecule of ATP.
Two acetyl CoA molecules are consumed to produce 4 CO2, (2ATP), 6 NADH and 2 FADH2. The ATP molecules are produced by substrate-level phosphorylation in glycolysis.one NADH can make 3 ATPone FADH2 can make 2 ATPyou go through krebs cycle twice because you have 2 pyruvates coming from glycolysis, so even though you make 3 NADH, you make 6 NADH in the end since you go through twice.6 x 3 = 18 ATPFADH2 is made once each go-around, so you have a total of 2 FADH22 x 2 = 4 ATP18 + 4 = 22 ATP produced from JUST the krebs cycle
Each turn of the Kreb's cycle must regenerate oxaloacetate.
2
2 ATP's are produced
The NADH molecule produces of 2 ATPs during the last stage of respiration. Some think that three ATPs are created from the NADH, however, the last stage of respiration is different than ATP and NADH during electron transfers.
In glycolysis, 2 ATP are produced. In the citric acid cycle, 2 ATP are produced. In the electron transport chain, approximately 28-34 ATP are produced, depending on the specific conditions and organism.
In aerobic respiration 38 ATPs are produced. In anerobic respiration only 2 are produced