Question

Explain the oxygen binding mechanism of in haemoglobin​

Answer 1

Answer:

Oxygen Binding Mechanism can be described as follows :

• In Oxygenated blood, Oxygen acts as a "lig and" and binds to Hemoglobin.
• It acts as a 6th coordination "lig and" and forms a coordinate bond with Fe+2 ion of heme .
• On the other hand, oxygen is attached to the distal histidine of the globin chain.
• Now whenever this coordination bond takes place, the Fe+2 is taken into the plane of the heme ring.
• This causes the Hemoglobin to become Relaxed state.
• This is how Oxygen Binding with Hemoglobin occurs at the alveolar level

Answer 2

Answer:

$Hemoglobin: The protein inside red blood cells (a) that carries oxygen to cells and carbon dioxide to the lungs ishemoglobin (b). Hemoglobin is made up of four symmetrical subunits and four heme groups. Iron associated with the heme binds oxygen. ... The fourth oxygen is then more difficult tobind.$