Which of the Following Statements About the Electron Transport Chain

question 72

Multiple Choice

Which of the following statements about the electron transport chain in cell respiration is CORRECT?

• A)The electron transport chain of proteins uses ATP to pump H⁺ across the inner mitochondria membrane against its electrochemical gradient.
• B)The electron transport chain of proteins contains pores that are leaky to H⁺.
• C)The loss in free energy of the electron initially donated by NADH is used to transport H⁺ across the inner mitochondrial membrane against its electrochemical gradient.
• D)Electrons move from NADH to a chain of proteins with lower electronegativities.
• E)The ATP synthase generates a H⁺ gradient across the inner mitochondrial membranE.

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