Oxygen in the ETS --> Destroyer

[Hopefuldental]

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Destroyer #172 states that "o2 is needed for the electron transport system to operate". However, I think this is false.

In bacteria, they can use non-oxygen containing final e- acceptors in their electron transport chain. Wikipedia agrees:

http://en.wikipedia.org/wiki/Electron_transport_chain#Terminal_oxidases_and_reductases

So, is oxygen needed for etc or not?

Thanks.

 

[nze82]

Destroyer #172 states that "o2 is needed for the electron transport system to operate". However, I think this is false.

In bacteria, they can use non-oxygen containing final e- acceptors in their electron transport chain. Wikipedia agrees:

http://en.wikipedia.org/wiki/Electron_transport_chain#Terminal_oxidases_and_reductases

So, is oxygen needed for etc or not?

Thanks.

First of all, anyone can edit the info in wikipedia, so don't always take it as a fact.
Second of all, usually, if the question is about prokaryotic cells, they will specifically mention it. Otherwise, you can assume the question is about eukaryotic cells. Almost all questions about cellular respiration are referring to eukaryotes containing mitochondria.

 

[pauly11235]

the ETC is an aerobic respiration method used by eukaryotes. Possibly in bacteria which are not euakryotes but rather are prokaryotes the ETC may work without oxygen. The destroyer is talking about the ETC in eukaryotes.