The oxygen in hemoglobin and myoglobin is bound to
A. the iron atom in the heme group
B. the nitrogen atoms on the heme
C. histidine residues in the protein
D. lysine residues in the protein
Answer:A
The oxygen in hemoglobin and myoglobin is bound to
A. the iron atom in the heme group B. the nitrogen atoms on the heme C. histidine residues in the protein D. lysine residues in the protein