How are the processes of cellular respiration and burning similar?

Answer:
During cellular respiration, electrons at the end of electron-transport chain are accepted by oxygen, thus reducing the oxygen.

And during burning, the same thing happens - electrons from the fuel are taken by oxygen, reducing the oxygen.
First answer by Kokonator. Last edit by Danbanswer. Contributor trust: 77 [recommend contributor recommended]. Question popularity: 2 [recommend question].