Their phytyl side chains allow them to anchor to membrane protein complexes. They are given the pref
Their phytyl side chains allow them to anchor to membrane protein complexes. They are given the prefix Bacterio- when an acetyl group is found at position 3 instead of a vinyl group, while the difference between their a and b varieties lies in the substitution of a methyl with an aldehyde. They are similar to hemes, but instead of an iron ion they contain a magnesium ion. FTP, name this group of tetrapyrroles, pigments which "harvest" light in numerous bacteria and plants, giving them a green hue.
Their phytyl side chains allow them to anchor to membrane protein complexes.