It’s actually the opposite. When the oxygen binds to the iron it changes from Fe+2 to Fe+3 so the binding of oxygen to the iron in hemoglobin is an oxidation process. At that point it can’t take more oxygen until it releases it in a reduction reaction.
The term “oxidation” is originally derived from reactions where a substance combines with oxygen but has since been generalized to any reaction where an electron is given up. So “oxidation” is the broader term and “oxygenation” is the specific oxidation reaction that results in binding oxygen.
It’s actually the opposite. When the oxygen binds to the iron it changes from Fe+2 to Fe+3 so the binding of oxygen to the iron in hemoglobin is an oxidation process. At that point it can’t take more oxygen until it releases it in a reduction reaction.
The term “oxidation” is originally derived from reactions where a substance combines with oxygen but has since been generalized to any reaction where an electron is given up. So “oxidation” is the broader term and “oxygenation” is the specific oxidation reaction that results in binding oxygen.