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O 2 = 21 % N 2 = 79 % CO 2 = Negligible

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.

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O 2 = 21 % N 2 = 79 % CO 2 = Negligible

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  1. O2 = 21 % N2 = 79 % CO2 = Negligible O2 = 16 % N2 = 80 % CO2 = 4 % Inspired Air Expired Air Alveolar Air O2 = 14 % N2 = 80 % CO2 = 6 % Percentage composition of Gases involved during breathing

  2. 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

  3. Arterial End Venous End

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