What does the oxygen used in cellular respiration show up as?

Answer 1

The oxygen that you get from breathing accepts the electrons at the end of the electron transport chain and two hydrogen ions to form water. The oxygen that exists in glucose is expelled as carbon dioxide when pyruvate is changed into Acetyl CoA and during the Krebs Cycle.

Answer 2

At the end of the electron transport chain as the end electron acceptor, grabbing the low energy electrons from Cytochrome c oxidase (last enzyme of the electron transport chain) and forming water as the waste product. This is the only place oxygen is used (beneficially) in cellular respiration and the human body in general.

Answer 3

The oxygen used in cellular respiration ends up as water (H2O). During cellular respiration, oxygen combines with hydrogen to form water molecules as a byproduct of the process.

Answer 4

Exhaled carbon di-oxide.

Answer 5

H2o