Which enzyme serves as the connection between glycolysis and the Krebs cycle?

Explanation

Pyruvate dehydrogenase is the enzyme complex that links glycolysis to the citric acid cycle by converting pyruvate into acetyl-CoA, which then enters the Krebs cycle. The other enzymes play different roles: lactate dehydrogenase converts pyruvate to lactate under anaerobic conditions, pyruvate kinase catalyzes the final step of glycolysis, and citrate synthase catalyzes the first step of the citric acid cycle.