Question

What do you mean by haemoglobin?

Answer 1

• Haemoglobin is the iron-containing oxygen-transport metalloprotein present in the in the red blood cells or erythrocytes of almost all vertebrates.
  
• It helps to carry oxygen in the blood from the lungs or gills to the rest of the body parts.
  
• A healthy individual has 12 to 16 grams of haemoglobin in every 100 ml of blood.
  
• Each haemoglobin protein is made up subunits called hemes.
• The hemes bind to iron molecules and these iron molecules bind oxygen.
• The blood cells are red because of the interaction between iron and oxygen.