Question

Where is the respiratory pigment in human body present?

• A. In white blood cells
• B. In red blood cells
• C. In both plasma and white blood cells
• D. In blood plasma

Answer 1

Answer:

B. In red blood cells

• A respiratory pigment is a substance that enhances the capacity of blood to carry oxygen.

• Hemoglobin is a protein molecule present in red blood cells (RBCs).

• In humans and other mammals, the most common respiratory pigment is hemoglobin.

• This protein uses iron to increase the oxygen-carrying capacity of our red blood cells.

• The interaction between iron and oxygen is what causes our blood to look red.