Articles > Pyruvate definition – quiz Pyruvate definition – quiz Quiz Choose the best answer. 1. Which of the following is NOT true about pyruvate? It is a carboxylate anion of pyruvic acid. It is a cofactor. It is an intermediate in glycolysis. 2. The major metabolic source of pyruvate Carbon dioxide Water Glucose 3. Pyruvate is converted into ___________ to participate in the citric acid cycle glucose Water acetyl CoA 4. The main role of pyruvate in cell respiration To help supply chemical energy via the citric acid cycle To produce glucose for glycolysis To act as final electron accepter in the electron transport chain 5. In the citric acid cyle, acetyl CoA reacts with _____ to produce citrate. isocitrate oxaloacetate fumarate Send Your Results (Optional) Your Name To Email Time is Up!