The immediate energy source that drives ATP synthesis by ATP synthase during oxidative phosphorylation is the .a. affinity of oxygen for electrons. b. H⁺ concentration across the membrane holding ATP synthase. c. transfer of phosphate to ADP. d. flow of electrons down the electron transport chain. e. oxidation of glucose and other organic compounds.

Option-(D): The immediate energy source that drives ATP synthesis by ATP synthase during oxidative phosphorylation is the flow of electrons down the electron transport chain.

Explanation:

The creation of optimum level of energy for the processing of different activities inside the cellular system and over all body of the living being is carried out by the mitochondria which serves the purpose of a power house for the whole cellular body.As, the creation of energy molecules is done after the Adenosine triphosphate is converted and this whole process involves a very specific nature of electron transport chain inside the mitochondria.

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