A single proton moving down its electrochemical gradient into mitochondrial matrix space liberates 19.2 kJ/mole of free

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A single proton moving down its electrochemical gradient into mitochondrial matrix space liberates 19.2 kJ/mole of free energy (ΔG). How many protons have to flow across the inner mitochondrial membrane to synthesize one molecule of ATP if the ΔG for ATP synthesis under intracellular conditions is between 46 and 54 kJ/ mole?  Range given for this latter value and not a precise number? Under which conditions would the lower value apply?

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Essential Cell Biology

ISBN: 9780393680362

5th Edition

Authors: Bruce Alberts, Karen Hopkin, Alexander Johnson, David Morgan, Martin Raff, Keith Roberts, Peter Walter

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