glycolysis is considered an ancient metabolic system
B) Glycolysis is considered to be an ancient metabolic system because it is not located in a membrane-bound organelle. C) Glycolysis is considered to be an ancient metabolic system because it occurs universally. D) Glycolysis is considered to be an ancient metabolic system because glucose is the universal substrate for glycolysis. E) Glycolysis is considered to be an ancient metabolic system because it is the most efficient metabolic pathway for ATP synthesis. Add your answer.