Question

When ferrous iron of haem unit gets associated with one molecule of oxygen to form
oxyhaemoglobin, this reaction is called
1) oxidation
2) oxygenation
3) reduction
4) redox reaction

answer pls.fast​

Answer 1

The correct option is 1.

• One haemoglobin unit has four ferrous ions so, four oxygen binds to it.
• Haemoglobin has four iron atoms in high that is +2 oxidation state.
• When a molecule of an oxygen atom is attached to a ferrous iron of the heme unit the iron gets oxidised to +3 state.
• Thus the reaction is called an oxidation reaction.

Answer 2

The correct answer is OPTION 2: Oxygenation.

• When the ferrous ion of the haem unit gets associated with one molecule of oxygen to form oxyhemoglobin, this reaction is called Oxygenation.
• The availability of oxygen can help any system, including the human body.
• The process of providing oxygen to a patient or combining oxygen with medicine or another substance is referred to as oxygenation.  
• Hyperbaric oxygenation is the supply of oxygen at a pressure greater than 1 atmosphere in a compression chamber, resulting in enhanced oxygen levels in organs and tissues.