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L6,7_ The transport of O2 and CO2 in the blood_Physio

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Questions

MCQ

1_ O2 tension plays a role in ............ of chemical transport of O2
A_ rate
B_ direction
C_ percent saturation
D_ all of the above


2_ Oxygen capacity depends on ......
A _ percent saturation
B _ HB content
C _ O2 tension
D _ all of the above
3_ Central chemoreceptors are stimulated by increasing the level of ....
A_ O2
B_ Co2
C_ H+
D_ B&C
4_ Decreasing of the following factors shifting the O2 dissociation curve to the right
A_ PH
B_ Co2 tension
C_ 2,3 DPG
D_ all of the above
5_ H+ concentration in the blood is proportional to the ratio of .....
A_ Co2 / bicarbonate
B_ O2 / Co2
C_ bicarbonate/ co2
D_ Non of the above
6_ The amount of Co2 in blood in bicarbonate form is about ......ml /100 ml bl.
A_ 48
B_45
C_ 42
D_ 3
True& Fulse

1_ Chemical transport of O2 makes control of O2 tension. ( )

2_ In O2 dissociation curve when O2 tension decreased from 100 to 60 mmHg the percent saturation decreased from 97% to 90 % ( )

3_ Co2 dissociation curve is a curve between Co2 tension and percent saturation of Co2. ( )

4_ Aortic bodies are stimulated by decrease the level of O2 only. ( )

5_ If 4% Co2 is breathed the Co2 tension in alveolar air rises to 50 mmHg ( )

6_ RC is more stimulated by drop of O2 tension than rise in Co2 tension. ( )

Answers

MCQ

1_d
2_b
3_b
4_a
5_a
6_c
True & Fulse

1_F
2_T
3_F
4_F
5_F
6_F















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