The Electron-Transport Chain and ATP Synthase Are Effectively Coupled

question 69

Multiple Choice

The electron-transport chain and ATP synthase are effectively coupled. Which statement BEST describes how this occurs?

• A) The electron-transport chain reoxidizes reduced cofactors.
• B) The electron-transport chain generates an electrochemical gradient that provides energy for the production of ATP.
• C) ATP synthase utilizes oxidized cofactors.
• D) Through a series of conformational changes, ATP synthase generates ATP.

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