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27 March, 22:15

Why are 4 H + needed for every ATP synthesized and exported by mitochondria, even though only 3 H + need to be translocated by the ATP Synthase Complex to synthesize one ATP?

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  1. 27 March, 22:37
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    Answer: One H⁺ ion ie required in converting ATP and inorganic phosphate to ATP

    Explanation:During oxidative phosphorylation, high energy electrons released by hydrogen carriers are shuttled through the electron transport chain. The released energy is used to translocate 3 H + ions from the matrix, creating an proton motive force, which will cause 1 H + ion to move down the electrochemical gradient and diffuse back into the matrix (chemiosmosis) which is facilitated by ATP synthase. As the H + moves through the ATP synthase this triggers the molecular rotation of the enzyme, synthesizing ATP
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