When Electrons Flow Along the Electron Transport Chains of Mitochondria

question 52

Multiple Choice

When electrons flow along the electron transport chains of mitochondria, which of the following changes occurs?

• A) The pH of the matrix increases.
• B) ATP synthase pumps protons by active transport.
• C) The electrons gain free energy.
• D) NAD+ is oxidized.

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Definitions:

Radius

In geometry, the distance from the center of a circle to any point on its circumference, also half the diameter of the circle.

Center

The middle point of a shape or object, equidistant from all outer edges.

Radius

The distance from the center to any point on the circumference of a circle.

Center

A point of origin or midpoint around which a figure or object is symmetrically arranged or balanced.