What role is played by the electron transport chain during cellular respiration?

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    The electron transport system produces ATP.
    The electron transport system takes energy from the high-energy electrons brought by electron carriers (e.g., NADH) and uses it to pump hydrogen ions against their concentration gradient from the matrix into the intermembrane compartment.
    The electron transport system allows hydrogen ions to diffuse down their concentration gradient from the intermembrane compartment to the matrix.
    all of the above

asked May 30, 2013 in Biology by anonymous
    

1 Answer

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The electron transport system takes energy from the high-energy electrons brought by electron carriers (e.g., NADH) and uses it to pump hydrogen ions against their concentration gradient from the matrix into the intermembrane compartment.
answered May 31, 2013 by Bioshare ~Top Expert~ (34,070 points)



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