As mentioned above, sucrose phosphorylase is a very important enzyme in metabolism. The reaction catalyzed by sucrose phosphorylase produces the valuable byproducts α-D-glucose-1-phosphate and fructose. α-D-glucose-1-phosphate can be reversibly converted by phosphoglucomutase to glucose-6-phosphate, which is an important intermediate used in glycolysis. In addition, fructose can be reversibly converted into fructose 6-phosphate, also found in the glycolytic pathway. In fact, fructose-6-phosphate and glucose-6-phosphate can be interconverted in the glycolytic pathway by phosphohexose isomerase. The final product of glycolysis, pyruvate, has multiple implications in metabolism. During conditions, pyruvate con be converted into either lactate or ethanol, depending on the organism, providing a quick source of energy. In conditions,