H2C=CH CH Fedin H3 CH 00C-C—CH CHC—COO Figure 1: The picture is the Figure 2: The pictureare the right is of the heme secondary structure of group in hemoglobin and hemoglobin, with only the shows the Fe( iron protein backbone and atom without the side chainsFigure 2: The pictureare the right is of the heme group in hemoglobin and shows the Fe(II) iron atom. Figure 1: The picture is the secondary structure of hemoglobin, with only the protein backbone and without the side chains