Which of the following is true of both mitochondria and chloroplasts?
(A) They are found in the cells of eukaryotic autotrophs and heterotrophs.
(B) They include stacks of membranes that absorb light.
(C) They include compartments where hydrogen ions are concentrated.
(D) They produce sugars using energy harvested in the cytoplasm.
(E) They break down sugar to produce A TP .
Answer: C