Transport of oxygen a Chain β Chain a Forms of oxygen transported Chemical combination: 98.5% Physical dissolution: 1.5% Fe+t atom Porphyrin molecule ■ Hemoglobin(血红蛋白,Hb) is essential for the transport of O2 by bloodTransport of oxygen ◼ Forms of oxygen transported – Chemical combination: 98.5% – Physical dissolution: 1.5% ◼ Hemoglobin (血红蛋白，Hb) is essential for the transport of O2 by blood