Question

how does carbon monoxide molecules linked to hemoglobin molecule

Answer 1

Hemoglobin is an iron-containing oxygen transport metalloprotein in the red blood cells of most mammals. Simply put, it's a carrier protein. Interestingly it doesn't carry carbon dioxide in the same way it does for oxygen O2OX2. Oxygen binds to the iron atoms in the protein whereas carbon dioxide CO2COX2 is bound to the protein chains of the structure. Carbon dioxide doesn't compete with oxygen in this binding process.

However, carbon monoxide COCO is a very aggressive molecule. It's a colourless, odourless, and tasteless gas that is lighter than air and can be fatal to life. It has a greater affinity for hemoglobin than oxygen does. It displaces oxygen and quickly binds, so very little oxygen is transported through the body cells.

There are two equilibrium reactions of binding oxygen and becoming oxygenated hemoglobin:

Hb(aq)+4O2(g)⟶Hb(O2)4(aq)Hb(aq)+4OX2(g)⟶Hb(OX2)X4(aq)

Hb(aq)+4O2(g)⟵Hb(O2)4(aq)Hb(aq)+4OX2(g)⟵Hb(OX2)X4(aq)

And carbon monoxide binding equation at equilibrium:

Hb(aq)+4CO(g)↽−−⇀Hb(CO)4

mark it as a brainliest answer
follow me also

Answer 2

The main oxygen-carrying substance in red blood cells is the proteinhaemoglobin. Each haemoglobin molecule contains four iron-containing units called haem groups. Each haemcan pick up one molecule of oxygen (O2) so each haemoglobin molecule can carry up to four oxygen molecules.


hope it helps
mark it as brainilist