Q. Blood is red in colour due to the presence of ________
✅ Correct Answer: (D)
Haemoglobin
Explanation: Hemoglobin is iron-containing oxygen transport protein in the red blood cells of all vertebrates. It has an oxygen binding capacity and gives the red colour to the blood.
Explanation by: Dhruva
Hemoglobin is iron-containing oxygen transport protein in the red blood cells of all vertebrates. It has an oxygen binding capacity and gives the red colour to the blood.