One molecule of Hb can bind to a maximum number of
Hemoglobins bind four molecules of O2 per tetramer, one per heme. A molecule of O2 binds to a hemoglobin tetramer more readily if other O2 molecules are already bound.Reference: Harper&;s Biochemistry; 30th edition; Chapter 6; Proteins: Myoglobin & Hemoglobin
Two molecules of oxygen
One molecule of oxygen
Four molecules of oxygen
Six molecules of oxygen
Metabolism of protein and amino acid