Refer to the Accompanying Figure

question 25

Multiple Choice

Refer to the accompanying figure.Which of the following best describes the direct mechanism of ATP production during photosynthesis?

• A) use of the energy generated as hydrogen ions (H⁺) move up a proton gradient; this energy is used to make ATP
• B) use of the energy released as excited electrons are passed from one molecule to another in the electron transport system; the energy is converted to the chemical bond energy of ATP
• C) use of the energy stored in excited electrons; as the electrons move from the excited state to the ground state, the energy released is converted to the energy stored in the third phosphate bond in ATP
• D) use of the energy stored in hydrogen ion (H⁺) gradients; the potential energy of the proton gradient is released as the protons move down their gradient through special membrane protein channels; this energy is converted to chemical bond energy in the ATP molecule

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Definitions:

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Occurring without a person's consent or control, often referring to actions or processes not chosen or intended.

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The assets that are collected from a debtor who files for bankruptcy.

Collective Bargaining Agreement

A written contract between an employer and a labor union representing a group of employees, outlining the terms of employment.