Oxygen is vital to the process of aerobic cellular respiration. It allows aerobic organisms to derive a great deal more energy from glucose than anaerobic organisms are able to. What is the vital role that oxygen plays in cellular respiration?

Oxygen is vital to the process of aerobic cellular respiration. It allows aerobic organisms to derive a great deal more energy from glucose than anaerobic organisms are able to. What is the vital role that oxygen plays in cellular respiration?


A) It is a reactant in glycolysis, necessary for the breakdown of glucose into pyruvic acid.
B) Oxygen is a waste product of Kreb's cycle.
C) Oxygen is required to build the acetyl-CoA molecule.
D) Oxygen is the final electron acceptor in the electron transport chain.


Answer: D) Oxygen is the final electron acceptor in the electron transport chain.


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