PATHOLOGY

Detailed explanation-1: -Oxyhemoglobin is the normal, oxygen-carrying form of hemoglobin in which iron is in the reduced (ferrous) state. Methemoglobin is a nonfunctional form of hemoglobin in which ferrous iron is oxidized to ferric iron. Methemoglobin is nonfunctional because it cannot bind oxygen.

Detailed explanation-2: -Oxyhaemoglobin is haemoglobin that has been bound to oxygen. Its function is to deliver oxygen to all of the body’s cells and tissues. Oxyhaemoglobin is formed when each haemoglobin molecule carries four molecules of oxygen.

Detailed explanation-3: -As oxygen diffuses across the respiratory membrane from the alveolus to the capillary, it also diffuses into the red blood cell and is bound by hemoglobin. The following reversible chemical reaction describes the production of the final product, oxyhemoglobin (Hb–O2), which is formed when oxygen binds to hemoglobin.