Select the correct answer. What’s the role of oxygen in cellular respiration? A. It accepts electrons and keeps the electron transport chain running. B. It breaks down carbon-based sugar molecules to release energy and forms carbon dioxide. C. It combines with hydrogen ions in sugar molecules to release energy and form water. D. It supplies electrons to the electron transport chain to keep it running.

Oxygen generally use electrons and keeps the electron transport chain continue during cellular respiration. the correct option is A.

What is cellular respiration?

Cellular respiration is chemical processes that degrades glucose to produce energy in the form of ATP. This further can then be used as energy to power a variety of reactions throughout the body.

Cellular respiration encompasses of three major steps: glycolysis, the citric acid cycle, and oxidative phosphorylation.

In cellular respiration, oxygen proceeds as the ultimate acceptor of electrons of the electron transport chain, which assist electron movement down the chain and aids in the creation of adenosine triphosphate (ATP). Water is formed in the process when oxygen reacts with electrons and hydrogen ions.

Thus, the correct option is A.

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