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. 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.