Overall, four molecules of atp are produced by glycolysis. however, the products of glycolysis are two atp molecules, two pyruvate molecules, and two nadh molecules. the atp values do not match because select one: a. glucose metabolism is inefficient. b. glucose phosphate is formed from fructose phosphate. c. glucose is degraded to co2. d. two atp are invested in the process of glycolysis. e. none of the above