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When you hold your breath, which of the ...

When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe

A

Rising `CO_(2)` conenetration

B

Rising `CO_(2)` and falling `O_(2)` concentration

C

Falling `O_(2)` concentration

D

Falling `CO_(2)` concentration

Text Solution

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The correct Answer is:
A
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PHYSICS WALLAH-BREATHING AND EXCHANGE OF GASES -NEET Past 10 Year questions
  1. Which of the following options correctly represents the lung condit...

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  2. Match the items given Column In with those in Column II and select...

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  3. Which of the following is an occupational respiratory disorder ?

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  4. Lungs are made up of air-filled sacs, the alveoli . They do not collap...

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  5. Which of the following cannot be measured by spirometry ?

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  6. Air pollution can result in Emphysema, which is

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  7. Lungs do not collapse between breaths and some air always remains in t...

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  8. The partial pressure of oxygen in the alveoli of the lungs is

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  9. Reduction in pH of blood will

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  10. Asthma may be attributed to:

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  11. Name the chronic respiratory disorder caused mainly by cigarette smoki...

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  12. When you hold your breath, which of the following gas changes in blood...

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  13. In which disease, due to flattening of tracheal vessels, alveoli are d...

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  14. The major fraction of CO(2) released during cellular respiration is tr...

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  15. Which one of the following is the correct statement for respiration in...

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  16. People who have migrated from the planes to an area adjoining Rohtang ...

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  17. Which one of the following is a possibility for most of us in regards ...

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  18. Bulk of carbon dioxide (CO(2)) released from body tissues into the blo...

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  19. A large proportion of oxygen is left unused the human blood even after...

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  20. The figure given below shows a small part of human lung where exchange...

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