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:

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Spermatic Vein

A vein draining blood from the testicle to the inferior vena cava or the left renal vein, involved in the temperature regulation of the testes.

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The muscular tube leading from the external genitals to the cervix of the uterus in women and most female mammals.

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