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It is dangerous to hold breath after por...

It is dangerous to hold breath after porlonged hyperventialtion because

A

lungs can collapse

B

`CO_(2)` narcosis

C

due to the lack of stimulation by `CO_(2)` anoxia can come close to dangerous levels

D

decreased `CO_(2)` shift the oxygen dissociation curve to the light

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The correct Answer is:
C
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TRUEMAN BIOLOGY-BREATHING AND EXCHANGE OF GASES -MULTIPLE CHOICE QUESTIONS
  1. Go through the following statements (i) haemoglobin is 50% satruate...

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  2. O(2) dissociation curve is shifted to right in all except

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  3. It is dangerous to hold breath after porlonged hyperventialtion becaus...

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  4. External respiration allows the exchangeof carbon dioxide for oxygen a...

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  5. Which of the following would be expected to have the greatest effect o...

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  6. Which of the following statement correctly describes the respiratory t...

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  7. Deprived oxygen concentration in blood is referred to as

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  8. The accompanying graph depicts the % saturation of vertebrate haemoglo...

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  9. Oxygen saturation curve of haemoglobin molecule is show in the graph ...

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  10. A person suffers punctures in his chest cavity in an accident, without...

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  11. Mark the true statement among the following with reference to normal b...

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  12. A person breathes in some volume of air by forced inspiration after ha...

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  13. Respiratory process is regulated by certain specialized centres in the...

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  14. CO(2) dissocated from carbamino haemoglobin when

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  15. From the following relationship between respiration volumes and capaci...

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  16. When CO(2) concentration in blood increases breathing becomes

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  17. Blood analysis of a patient reveals an unusually high quantity of carb...

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  18. People living at sea level have around 5 million RBC per cubic millime...

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  19. Which one of the following statement is incorrect ?

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  20. The majority of carbon dioxide produced by our body cells is transport...

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