What is the primary function of hemoglobin in red blood cells?
- A. Transporting oxygen throughout the body ✓
- B. Fighting infection
- C. Clotting blood
- D. Producing antibodies
Correct answer
A. Transporting oxygen throughout the body
Explanation
Hemoglobin binds oxygen in the lungs and releases it to tissues throughout the body, making oxygen transport its primary function.
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