Why Is Oxygen Needed in Cellular Respiration

question 55

Multiple Choice

Why is oxygen needed in cellular respiration?

• A) Oxygen combines with ADP to create ATP.
• B) Oxygen is the final electron acceptor in the electron transport chain.
• C) Oxygen carries electrons from the citric acid cycle to the electron transport chain.
• D) Fermentation in muscle cells relies upon oxygen as an electron acceptor.

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