Which one of the following statements about the redox reactions of the electron transport chain is correct?

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Which one of the following statements about the redox reactions of the electron transport chain is correct? 1 NADH gains electrons in the initial reaction of the electron transport chain. 2 The electron transport chain takes electrons from water and gives them to oxygen. 3 The oxidation of NADH is directly coupled to the reduction of oxygen to water. 4 The redox reactions of the electron transport chain are directly coupled to the movement of protons across a membrane. 5 The redox reactions of the electron transport chain are directly coupled with the synthesis of ATP.

The Correct Answer is

4

Reason Explained

4 is correct for Which one of the following statements about the redox reactions of the electron transport chain is correct?

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