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O 2 = 21 % N 2 = 79 % CO 2 = Negligible . O 2 = 16 % N 2 = 80 % CO 2 = 4 %. Inspired Air. Expired Air. Alveolar Air O 2 = 14 % N 2 = 80 % CO 2 = 6 %. Percentage composition of Gases involved during breathing. Hemoglobin and 0 2 Transport. 280 million hemoglobin/RBC. - PowerPoint PPT Presentation
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O2 = 21 %N2 = 79 %CO2 = Negligible
O2 = 16 %N2 = 80 %CO2 = 4 %
Inspired Air Expired Air
Alveolar AirO2 = 14 %N2 = 80 %CO2 = 6 %
Percentage composition of Gases involved during breathing
Hemoglobin and 02 Transport
• 280 million hemoglobin/RBC.
• Each hemoglobin has 4 polypeptide chains and 4 hemes.
• In the center of each heme group is 1 atom of iron that can combine with 1 molecule 02.
Insert fig. 16.32
Venous End Arterial End
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