AP BIOLOGY

CELL RESPIRATION

CHEMIOSMOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
As protons flow back across the membrane, ATP synthesis is catalyzed by
A
proton-motive force
B
substrate level phosphorylation
C
pumping of protons
D
electron transport
Explanation: 

Detailed explanation-1: -The classical view of oxidative phosphorylation is that a proton motive force (PMF) generated by the respiratory chain complexes fuels ATP synthesis via ATP synthase.

Detailed explanation-2: -Mitochondrial respiration results in an electrochemical proton gradient, or protonmotive force (pmf), across the mitochondrial inner membrane (IM). The pmf is a form of potential energy consisting of charge (

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