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Cellular respiration lecture notes

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CELLULAR RESPIRATION This Photo by Unknown Author is licensed under CC BY MITOCHONDRION CYTOSOL 2 NADH Glycolysis 2 Pyruvate Glucose + 2 ATP The Glycolysis happens in the cytosol. Glucose is broken down to 2 pyruvate molecules. 4 ATP molecules are produced but 2 ATP molecules are used in the process itself. CYTOSOL Electron shuttles span membrane 2 NADH or 2 FADH2 2 NADH Glycolysis 2 Pyruvate Glucose + 2 ATP NADH “passes through” electron shuttle and is either converted to FADH2 (Flavine Adenine Diphosphate) or remains as NADH. CYTOSOL MITOCHONDRION Electron shuttles span membrane 2 NADH or 2 FADH2 2 NADH 2 NADH Glycolysis 2 Pyruvate Glucose (Transition Stage) 2 Acetyl CoA CO2 CoA + 2 ATP In the presence of O2, the pyruvate enters the mitochondrion (particularly the matrix). Coenzyme A attaches to the pyruvate forming acetyl-coA and releasing CO2. CYTOSOL MITOCHONDRION Electron shuttles span membrane 2 NADH or 2 FADH2 2 NADH 2 NADH Glycolysis 2 Pyruvate Glucose (Transition Stage) 2 Acetyl CoA 6 NADH 2 FADH2 Citric acid cycle CO2 CoA + 2 ATP + 2 ATP In the Krebs cycle, two molecules of ATP are produced, one for each acetyl-CoA. In addition to this, six molecules of NADH and two molecules of FADH2 are produced. CYTOSOL MITOCHONDRION Electron shuttles span membrane 2 NADH or 2 FADH2 2 NADH 2 NADH Glycolysis 2 Pyruvate Glucose (Transition Stage) 2 Acetyl CoA 6 NADH Citric acid cycle CO2 CoA + 2 ATP + 2 A ...
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