The three stages of cellular respiration are glycolysis, Krebs cycle, and the electron transport chain. When do cells exhibit all these stages?

In the absence of oxygen only

In the presence as well as in the absence of oxygen

In the presence of oxygen only

Question

The three stages of cellular respiration are glycolysis, Krebs cycle, and the electron transport chain. When do cells exhibit all these stages?



In the absence of oxygen only 



In the presence as well as in the absence of oxygen 



In the presence of oxygen only

anonymous · Answer

b or c, im thinking c is the correct one though

anonymous · Answer

http://openstudy.com/study#/updates/53553b89e4b066a1cac3ff00