I think if I remember well is a group of proteins or enzymes that belong to the superfamily of HEME. The metal involved has to be Fe, due to its magnetic powers to exchange protons in molecules...
The term 'cytochrome' means (biochemistry) a class of hemoprotein whose principal biological function is electron transfer (especially in cellular respiration)
Cytochrome Oxidase are most likely to be found in mitochondria and important in cell respiration as an agent of electron transfer from certain cytochrome molecules to oxygen molecules
Cytochrome BF is a complex that is involved in the electron and H+ transportation in chloroplast. During the light dependent reaction in the chloroplast, cytochrome BF uses high energy electrons from...