Ta mooadys eddyr 1 as 10 (μm) oc. Ta mitochondria giennaghtyn y chooid smoo jeh adenosine triphosphate (ATP) y chillag, as ta killagyn jannoo ymmyd jeh myr bun bree kemmigagh. Chammah's giennaghtyn bree, ta laue mitochondria ayns obbraghyn elley, goaill stiagh cowraghey, rheynn killag, apoptosis, as stiurey aase y chillag. Ta shiartanse dy çhingyssyn deiney bentyn rish mitochondria goaill stiagh meeobbraghey y chree.