Essential Biochemistry - Chemistry Of Hemoglobin (Section 2 - No. 47)

What is methemoglobin?

Hemoglobin in which the iron is in the ferrous (Fe²⁺) state

Hemoglobin in which the iron is in the ferric (Fe³⁺) state

Hemoglobin bound to oxygen

Hemoglobin bound to carbon monoxide

Methemoglobin is hemoglobin with iron in the ferric (Fe³⁺) state.