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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Definitions:

Indorser

The person who signs and transfers a negotiable instrument, such as a check or promissory note, to another party.

Secondary Liability

The legal obligation to pay a debt if the primary obligor defaults, usually applied in cosigning contexts.

Blank Check

A check signed by the drawer with the amount left blank, allowing the payee to enter any amount.

Raising The Check

Increasing the amount payable on a check, often through unauthorized alteration.