any of several iron-containing enzymes found in almost all animal and plant cells, very important in cell respiration
Origin of cytochromecyto- + -chrome
Any of a class of usually colored proteins that contain a heme group, are electron carriers, and catalyze oxidation-reduction reactions during cellular respiration.
- Any of various related hemoproteins found in the cells of most organisms, which are an important part of cell respiration.
- 2001: The drug-metabolizing enzymes in the liver, called cytochrome-p450s, comprise a large family of some fifty or more related enzymes, which have evolved in a remarkable way — Leslie Iversen, Drugs: A Very Short Introduction (Oxford 2001, p. 33)