A mitosome is an organelle found in some unicellular eukaryotic organisms. The mitosome has only recently been found and named, and its function hasn't yet been well characterized. It was termed a crypton by another group but that name isn't being used any more. The mitosome has been detected only in anaerobic or microaerophilic organisms that don't have mitochondria. These organisms don't have the capability of gaining energy from oxidative phosphorylation, which is normally performed by mitoch… (More on Mitosome)