The enzyme that serves as the connecting link between glycolysis and Krebs cycle is ______Aphosphoenolpyruvic acidBglyceraldehydeCacetyl CoADisomeraseAnswer: C. acetyl CoA Read Explanation: Acetyl CoA or activated acetate is formed as a result of the combination of pyruvate with Sulphur containing coenzyme A. This step is also called gateway step or link reaction as it connects the two main processes of respiration namely glycolysis and Krebs cycle. Read more in App