試題詳解

65. Which statement for hemoglobin (the oxygen-binding protein in red blood cells) is FALSE?
(A) Hemoglobin exists in T and R states and R state prefers to bind oxygen.
(B) Oxygen binding converts hemoglobin from T to R state.
(C) Oxygen binding to hemoglobin is both allosteric and cooperative.
(D) Hemoglobin also binds H+ and CO2 to lessen the affinity for O2.
(E) Oxygen binding is also regulated by 2,3-bisphosphoglycerate, which stabilizes R state.