select the correct answer.\nwhats the role of oxygen in cellular respiration?\na. it accepts electrons and…

select the correct answer.\nwhats the role of oxygen in cellular respiration?\na. it accepts electrons and keeps the electron transport chain running.\nb. it breaks down carbon - based sugar molecules to release energy and forms carbon dioxide.\nc. it combines with hydrogen ions in sugar molecules to release energy and form water.\nd. it supplies electrons to the electron transport chain to keep it running.

select the correct answer.\nwhats the role of oxygen in cellular respiration?\na. it accepts electrons and keeps the electron transport chain running.\nb. it breaks down carbon - based sugar molecules to release energy and forms carbon dioxide.\nc. it combines with hydrogen ions in sugar molecules to release energy and form water.\nd. it supplies electrons to the electron transport chain to keep it running.

Answer

Brief Explanations:

In cellular respiration, oxygen acts as the final electron acceptor in the electron - transport chain. This allows the chain to continue functioning, generating a proton gradient for ATP synthesis. Option B describes glycolysis and the citric acid cycle, not the role of oxygen. Option C is an inaccurate description of oxygen's role. Option D is incorrect as oxygen accepts electrons, not supplies them.

Answer:

A. It accepts electrons and keeps the electron transport chain running.