Assuming That Gluconeogenesis Was Active in a Mammalian Liver, Under

Multiple Choice

Assuming that gluconeogenesis was active in a mammalian liver, under what conditions would PEPCK have more activity in the mitochondria than in the cytosol?

A) the activity of pyruvate carboxylase was very low
B) high levels of malate were being transported out of the mitochondria
C) lactate was serving as the primary carbon source for gluconeogenesis
D) glycerol was serving as the primary carbon source for gluconeogenesis
E) none of the above