explain the role of blood in transporting oxygen to tissues
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Once oxygen has entered the blood from the lungs, it is taken up by haemoglobin (Hb) in the red blood cells. ... Each molecule of haemoglobin can hold four oxygen molecules. It is haemoglobin that carries the oxygen as it is transported around the body in the blood.
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Once oxygen has entered the blood from the lungs, it is taken up by haemoglobin (Hb) in the red blood cells. Each molecule of haemoglobin can hold four oxygen molecules. It is haemoglobin that carries the oxygen as it is transported around the body in the blood
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