14. Which of the following statements about mitochondrial transport systems is correct?
(A) Malate-aspartate shuttle: converts cytosolic NADH to mitochondrial FADH2
(B) ATP-ADP translocase: transfers ATP and a proton from matrix to cytosol while transferring ADP from cytosol to matrix
(C) Glycerophosphate shuttle: converts cytosolic FADH2 to mitochondrial NADH
(D) The malate-aspartate shuttle is irreversible while the glycerophosphate shuttle is reversible.
(E) None of the above are correct.