• Question: How can blood cells carry oxygen?

    Asked by Diegoperezsanz to Ben, Francis, Max on 15 Mar 2018.
    • Photo: Ben Mulhearn

      Ben Mulhearn answered on 15 Mar 2018:

      Red blood cells have a protein inside them called haemoglobin. This can react with oxygen, so can ‘carry’ oxygen. In that way, red blood cells can carry oxygen in the blood. Then when in the tissues, oxygen is released from the haemoglobin.

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