Answer:
Link reaction
Step-by-step 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.