In general, the function of the water soluble vitamins is to
A) Be electron acceptors during oxidation-reduction reactions B) Serve as cofactors for enzymatic reactions C) Take part in cellular signaling D) Regulate gene expression E) Direct the synthesis of proteins
NADH that feeds into the electron transport chain originates mainly from
A) Glycolysis in the cytosol B) β oxidation in the mitochondria C) The TCA cycle in the mitochondria D) Protein catabolism in the cytosol E) β oxidation in the peroxisomes