Question

The respiratory pigment present in the RBC of vertebrate blood is called

• A. Haemoglobin
• B. Haematin
• C. Haematochrome
• D. Erythrocyanin

Answer 1

The correct option is A Haemoglobin

The respiratory pigment present in the RBC of vertebrate blood is called Haemoglobin. Haemoglobin (Hb or Hgb ) is an iron-containing protein present in erythrocytes or Red blood cells(RBC) of almost all vertebrates. Each hemoglobin can bind to four oxygen molecules. It carries oxygen from lungs to tissues. It also helps in the transportation of carbon dioxide, hydrogen ions back to the lungs from the tissues.

So, the correct answer is 'Haemoglobin'.