1.

Explain the importance of haemoglobin

Answer»

Hemoglobin / haemoglobin abbreviated as Hb is a protein molecule present in the red blood cells (RBCs).

This molecule is responsible for carrying oxygen from the lungs to other tissues of the body, and collects the CARBON dioxide from the tissues and returns it to the lungs.

Hemoglobin is made up of four protein molecules – TWO alpha-globulin chains and two beta-globulin chains.

Each of the globulin chain contains an IRON-containing porphyrin compound called heme. Heme compound contains iron atom in it and is crucial for oxygen and carbon dioxide transportation in our blood.

The red color of the hemoglobin is because of this iron compound.

Other role of Hb is MAINTAINING the normal shape of the RBCs.

The exchange of gases occurs because of many biochemical reactions .


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