The Figure Below Is a Diagram of the Inner Mitochondrial

question 18

Multiple Choice

The figure below is a diagram of the inner mitochondrial membrane.
How did the protons (H⁺) in this diagram become concentrated on one side of the membrane?

• A)The H⁺ were pumped across the membrane by the electron transport chain.
• B)The H⁺ were released when ATP phosphorylated a membrane protein.
• C)ATP was used to pump the H⁺ across the membrane.
• D)Oxygen must release two H⁺ in the intermembrane space before it can move into the matrix.

---

Definitions:

Temperature

A measure of thermal energy within a substance or system, reflecting the degree of heat present and influencing the physical state and reactions of matter.

Anther

The part of a flower's stamen that contains pollen, which is necessary for fertilization in plants.

Nonreproductive

Pertaining to functions or behaviors not directly involved in the process of reproduction.