Chemiosmotic ATP synthesis (oxidative phosphorylation) occurs in
A) only eukaryotic cells, in the presence of oxygen.
B) all cells, in the absence of respiration.
C) all respiring cells, both prokaryotic and eukaryotic, using either oxygen or other electron acceptors.
D) all cells, but only in the presence of oxygen.
E) only in mitochondria, using either oxygen or other electron acceptors.
Answer: C