Question

Oxygen is carried by a red pigment called _________ (blood/haemoglobin) present in the red blood cells.

Answer 1

Haemoglobin:

1. Haemoglobin is an iron-containing protein found in red blood cells(RBCs) that acts as an oxygen carrier.
2. It is a respiratory pigment that plays an important role in transporting oxygen as oxyhaemoglobin from the lungs to different parts of the body.
3. Haemoglobin is the red pigment due to which blood appears red in colour.

Final answer:

Oxygen is carried by a red pigment called haemoglobin present in the red blood cells.