(A) Glycolysis and citric acid cycle (
)
(B) Glycogenolysis and Gluconeogenesis (X)
(C) Embden-Meyerhof Pathway and H.M.P shunt (X)
(D) Glycogenolysis and Citric and cycle (X)
Answers: The main pathways of metabolism in brain are Glycolysis and citric acid cycle.
