noun. Any of a class of usually colored proteins that contain a heme group, are electron carriers, and catalyze oxidation-reduction reactions during cellular respiration.

In neural., a name given by Nissl to the so-called ‘granules,’ or nerve-cells with scanty cytoplasm incompletely surrounding a small nucleus which does not exceed in size the nucleus of an ordinary leucocyte or neuroglia cell: opposed to *caryochrome cell which has a larger nucleus.

noun. Any of various related hemoproteins found in the cells of most organisms, which are an important part of cell respiration.

noun. (biochemistry) a class of hemoprotein whose principal biological function is electron transfer (especially in cellular respiration)

"Researchers found differences in 10 genes around an enzyme called cytochrome P450 1b1, which is known to break down estrogen and tobacco smoke."

apocytochrome  holocytochrome  

haemoprotein  hemoprotein  

cytochrome c  

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