contestada

Gluconeogenesis must use "bypass reactions" to circumvent three reactions in glycolysis that are highly exergonic and essentially irreversible. Which of the following correctly matches the glycolytic reaction with the gluconeogenic enzyme used in the corresponding bypass reaction?


(A) Fructose 6-phosphate -> fructose 1,6-bisphosphate; phosphofructokinase-2
(B) 2-phosphoglycerate -> phosphoenolpyruvate; phosphoglycerate kinase
(C) Phosphoenolpyruvate -> pyruvate; pyruvate kinase
(D) Glucose -> glucose 6-phosphate; glucose 6-phosphatase
(E) Glyceraldehyde 3-phosphate -> 1,3-bisphosphoglycerate; phosphoenolcarboxykinase