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| Description: The free oxygen concentration is expressed as PO2, the partial pressure of oxygen. The proportion of myoglobin binding sites that are occupied is expressed as a fraction (YO2, on the left) or as percent saturation (on the right). As PO2 becomes large, 100% saturation is approached asymptotically. The value of P50, the partial pressure of oxygen at 50% saturation, is indicated on the graph (black arrow). The dashed blue lines show that at PO2, of 30 mm Hg, Mb would be 90% saturated with O2. Picture Stats: Views: 281 Filesize: 59.87kB Height: 523 Width: 466 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34118 |