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The transition reaction connects glycolysis to the citric acid (Krebs) cycle. 3. The transition reaction converts the two molecules of the 3-carbon pyruvate from glycolysis (and other pathways) into two molecules of the 2-carbon molecule acetyl Coenzyme A (acetyl-CoA) and 2 molecules of carbon dioxide. According to CCBCMD

Answer:

Link reaction

Explanation:

Glycolysis is the first step of cellular respiration. It breaks down glucose into two pyruvate molecules. Link reaction is decarboxylation of pyruvate into acetyl CoA. Acetyl CoA then enters the citric acid cycle and is broken down into CO2 and H2O. Hence, link reaction of pyruvate decarboxylation connects glycolysis and citric acid cycle.