What is the absorption spectrum of cytochrome?
There are several different cytochromes with diverse absorption spectra. Typically, c-type cytochromes have a prominent band peak at about 550 nm, b-type cytochromes at around 558-560 nm, and a type cytochromes out around 605 nm. There are other bands that every cytochrome has, but these regions (the so-called alpha absorption bands) are the best to distinguish the substance under study.