Chemiosmosis in chloroplasts and mitochondria share all but one of the following conditions.
A)Iron-rich cytochrome is used for electron transport.
B)Electrons are passed through carriers that are progressively more electronegative.
C)Protons are pumped across a membrane into a reservoir.
D)An ATP synthase complex is embedded within the membrane.
E)Electrons are donated from organic compounds.

Question

Quizplus · Accepted Answer

The only difference between chemiosmosis in chloroplasts and mitochondria is the source of electrons. In chloroplasts, electrons are donated from water during the light-dependent reactions of photosynthesis, while in mitochondria, electrons are donated from organic compounds during cellular respiration. All other conditions, including the use of iron-rich cytochrome, the passing of electrons through progressively more electronegative carriers, the pumping of protons across a membrane into a reservoir, and the presence of an ATP synthase complex embedded within the membrane, are shared by both chloroplasts and mitochondria.

Chemiosmosis in Chloroplasts and Mitochondria Share All but One of the Following