![]() Here, the pyruvate is combined with Coenzyme A to release a carbon dioxide molecule and form acetyl-CoA. Pyruvate is transfered into the mitochondrial matrix via a protein known as pyruvate translocase. Oxidative decarboxylation, sometimes referred to as the link reaction or the transition reaction, is the link between glycolysis and the citric acid cycle. Oxidative decarboxylation of pyruvateĢ (Pyruvate – + Coenzyme A + NAD + → Acetyl CoA + CO 2 + NADH) In the next stage, pyruvate is processed to turn it into fuel for the citric acid cycle, using the process of oxidative decarboxylation. This is important, as later in the process of cellular respiration, NADH will power the formation of much more ATP through the mitochondria’s electron transport chain. This process reduces the co-factor NAD + to NADH. This process creates two ATP molecules.Ĭ 6H 12O 6 + 2 ADP + 2 PI + 2 NAD + → 2 Pyruvate + 2 ATP + 2 NADH + 2 H + + 2 H 2O It involves the splitting of 1 six-carbon sugar molecule into 2 three-carbon pyruvate molecules. Glycolysis is the first stage of aerobic respiration and occurs in the cytoplasm of the cell. The reactions of aerobic respiration can be broken down into four stages, described below. In summary, 1 molecule of six-carbon glucose and 6 molecules of oxygen are converted into 6 molecules of carbon dioxide, 6 molecules of water, and 38 molecules of ATP. That equation is:ġ glucose + 6 O 2 → 6 CO 2+ 6 H 2O + 38 ATP The equation for aerobic respiration describes the reactants and products of all of its steps, including glycolysis. Steps of Aerobic Respiration Overall Equation This is how alcoholic drinks and bread are made.Īerobic respiration, on the other hand, sends the pyruvate leftover from glycolysis down a very different chemical path, the steps of which are discussed in detail below. These processes represent a type of anaerobic respiration called “fermentation.” Some types of fermentation reactions produce alcohol and carbon dioxide.
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