The oxidation of the Hb molecule's iron ions to the ferric state (Fe³⁺) results in which of the following?
I.form of anemia called sickle cell anemia
II.formation of methemoglobin (metHb)
III.inability of metHb to bind with oxygen

Question

Quizplus · Accepted Answer

II and III are correct because the oxidation of hemoglobin's iron to the ferric state results in the formation of methemoglobin, which cannot bind oxygen effectively. Sickle cell anemia is caused by a genetic mutation in the hemoglobin protein, not by the oxidation state of the iron ion.

The Oxidation of the Hb Molecule's Iron Ions to the Ferric