5. The main function of hemoglobin is A.Carries Oxygen B.Control Blood Pressure C.Produce hormones D.None of the above
Answer: Option A Solution: About 70 percent of your body's iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin. Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues.
