87. Which of the following statements regarding gluconeogenesis is NOT correct? (A) Gluconeogenesis is the pathway for glucose synthesis from noncarbohydrate precursors such as lactate and pyruvate. (B) Conversion of pyruvate to phosphoenolpyruvate requires pyruvate carboxylase and phosphoenolpyruvate carboxykinase and is spontaneous. (C) Pyruvate carboxylase is mainly located in mitochondria. (D) Glycogen is the glucose-storage polymer of animals. (E) Pentose phosphate pathway provides an alternative pathway for glucose metabolism.