Energy is passed to an electron transport chain in order to produce a proton (H+) gradient across the inner mitochondrial membrane.
Oxidative phosphorylation is the last and most energetically efficient step in cellular respiration.
Oxidative phosphorylation is based on the transport of electrons on carriers, which is coupled to the generation of a proton gradient.
In conclusion, energy is passed to an electron transport chain in order to produce a proton (H+) gradient across the inner mitochondrial membrane.
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