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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

Falling `CO_2` concentration

B

Rising `CO_2` and falling `O_2` concentration

C

Falling `O_2` concentration

D

Rising `CO_2` concentration

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-BREATHING AND EXCHANGE OF GASES -EXERCISE-III (Previous AIPMT/NEET Questions)
  1. Lungs are made up of air-filled sacs, the alveoli. They do not collaps...

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

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  3. A pollution can result in Emphysema, which is

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

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  5. Reduction in blood pH will

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

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

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  8. Name the pulmonary disease in which alveolar surface area involved in ...

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

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  10. Approximately seventy percent of carbon dioxide absorbed by the blood ...

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

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  12. Why people migrate from place to place? Is there any families migrate ...

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  13. A large proportion of oxygen remains unused in the human blood even af...

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  14. Bulk of carbon dioxide (CO2) released from body tissues into the blood...

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  15. Which one of the following a possibility for most of us in regard to b...

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  16. What is true about RBCs in humans?

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  17. What is vital capacity of our lungs?

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  18. The haemoglobin of a human foetus

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