The pH gradient established by the electron transport chain in photosynthesis: a.) Â Exists between the matrix and...

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Chemistry

The pH gradient established by the electron transportchain in photosynthesis:
a.) Â Exists between the matrix and themitochondrial intermembrane space
b.) Â Sets up a voltage gradient that drives GTPformation
c.) Â Is established by electron transfer fromFADH2 and NADPH from the TCA
cycle to oxygen
d.) Â Occurs in part because Fe-S clusters canonly transport electrons and not protons
e.) Â None of the aboveÂ

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1 Energy obtained through the transfer of electrons down the ETCELECTRON TRANSPORT CHAIN is used to pump protons from the mitochondrial matrix into the intermembrane space creating an electrochemical proton gradient pH across the inner mitochondrial membrane IMM This proton gradient is largely but not exclusively responsible for the mitochondrial membrane potential M It allows ATP synthase to use the flow of H through the enzyme back into the matrix to generate ATP from adenosine diphosphate ADP and inorganic phosphate Complex I NADH coenzyme Q reductase labeled I accepts electrons from the See Answer

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