Anaerobic Respiration
Anaerobic respiration is the process of respiration using an electron acceptor other than O2. In prokaryotes, multiple electron acceptors can be used in anaerobic respiration. These include nitrate, sulfate or carbon dioxide. These processes lead to the ecologically important processes of denitrification, sulfate reduction and acetogenesis, respectively.
Read more about this topic: Adenosine Triphosphate, Biosynthesis