it gets electrons[2 eletrons from NADH and 2 electrons from FADH2] from NADH and FADH2....In case of NADH- it is directly from glycolysis but in case of FADH2-it is not directly attached to ETC but succinate is oxidised to fumarate realising FADH2
Glycolysis
From Glycolysis and Electron Transport Chain
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Nadh and ATP
NADH and ATP
The energy carrier produced during glycolysis is adenosine triphosphate (ATP). This molecule stores and transports energy within cells to support various cellular processes.
The NADH produced in glycolysis enters the electron transport chain (ETC) at a lower energy level compared to the NADH produced in the Krebs cycle. This difference in energy level leads to a smaller proton gradient and ultimately results in the production of less ATP when the NADH from glycolysis is used in the ETC.
Glucose is oxidized to generate two molecules of pyruvate in the process of glycolysis. During glycolysis, ATP is produced through substrate-level phosphorylation and NADH is generated by oxidizing NAD^+.
Two NADH molecules are produced in glycolysis for each glucose molecule that is catabolized. NADH is generated through the reduction of NAD+ during the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate as part of the glycolytic pathway.
Fermentation allows the production of ATP to continue by regenerating NAD+ from NADH. During glycolysis, NADH is produced, but it needs to be converted back to NAD+ to keep glycolysis going. In fermentation, NADH is oxidized, regenerating NAD+ so that glycolysis can continue to produce ATP.
If 2 NADH molecules were produced in glycolysis, it means that 1 glucose molecule was broken down. Each glucose molecule yields 2 NADH molecules during glycolysis.
NADH is produced during both the glycolysis and citric acid cycle phases of cellular respiration. In glycolysis, NADH is generated when glucose is broken down into pyruvate. In the citric acid cycle, NADH is produced as acetyl-CoA is further metabolized to generate ATP.
During glycolysis, 2 NADH molecules are produced. During the citric acid cycle, 6 NADH molecules are produced. Therefore, a total of 8 NADH molecules are produced during the complete breakdown of one molecule of glucose.
A total of 10 NADH molecules are produced during the stages of aerobic respiration. This includes 2 NADH molecules from glycolysis, 2 NADH molecules from the conversion of pyruvate to Acetyl-CoA, and 6 NADH molecules from the Krebs cycle.
NADH is produced during glycolysis, the citric acid cycle, and the electron transport chain in cellular respiration. It is a reducing agent that carries high-energy electrons to the electron transport chain to produce ATP.