A) The subunits of cytochrome c oxidoreductase (complex IV) are associated to eukaryotic proteins.
B) Oxidation of NADH + H
+ contributes to the formation of a larger
Δ p.
C) The initial oxidoreductase, the NADH dehydrogenase (complex I), pumps more protons than the NDH-1 in Escherichia coli.
D) The succinate dehydrogenase (complex II) contributes to
Δ p by pumping protons onto the intermembrane space.
E) The ETS of some bacteria, such as Paracoccus denitrificans, are organized in a manner similar to that of mitochondria.