Hemoglobin is a protein composed of four subunits,each with a binding site for oxygen.When a molecule of O₂ binds to any one of the subunits,the affinity of the other three subunits for O₂ is increased.What role is oxygen playing in this process?

Question

Quizplus · Accepted Answer

Oxygen acts as an allosteric activator in the binding of hemoglobin. It increases the affinity of the other subunits for oxygen, which helps in the binding of more oxygen molecules.

Hemoglobin Is a Protein Composed of Four Subunits,each with a Binding