Why is it important that hydrogen ions are continually released to the outside of the mitochondrion as electrons are moved through the electron transport chain?
Multiple choice question.
A)
Hydrogens outside of the mitochondrion attract electrons and deliver them to transport proteins in the electron transport chain. More external hydrogen ions can attract more electrons.
B)
Mitochondria must create and maintain a proton gradient, where the higher concentration of external hydrogen ions will cause the protons to move back through ATP synthase in attempt to balance the gradient.
C)
Oxygen can’t be oxidized if there are hydrogen ions inside the mitochondrion, so the ions must be exported to allow oxygen to act as the final electron acceptor.
D)
Hydrogen ions must remain in high concentration outside of the mitochondrion to attract electrons to the end of the electron transport chain.
E)
Cells must maintain an equal concentration of hydrogen ions inside and outside the mitochondria to synthesize ATP.
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