Multiple choice

Oxygen in our blood is transported by a pigment named

  1. hemoglobin

  2. keratin

  3. collugen

  4. myoglobin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hemoglobin is the iron-containing pigment in red blood cells that transports oxygen from the lungs to body tissues and carries carbon dioxide back to the lungs. It gives blood its red color and is essential for respiration.

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