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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)` concentration

B

Falling `CO_(2)` concentration

C

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

D

Falling `O_(2)` concentration

Text Solution

Verified by Experts

The correct Answer is:
a
Rise in `CO_(2)` concentration is deteced by chemosensitive area activates inspiratrory centre in medulla oblongata , which lead to urge of breathing . Role of `CO_(2)` concentration is non signigifcant.
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ERRORLESS -BREATHING AND EXCHANGE OF GASES-Breathing And Exchange Of Gases
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  2. Reduction in pH of blood will

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

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  4. In lungs there is definiteexchange of ions between RBC and plasma. Rem...

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  5. In a minute normal man respires

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  6. The process by which chloride ions pass into R.B.C. and bicarbonate io...

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  7. Following diagram indicates the mechanism of breathing. Identify all t...

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  8. Muscles which help in respiration are

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  9. Of the following, the one which is an example of buffer system in bloo...

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  10. In a normal man to help the transport of O(2) " and " CO(2) properly, ...

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  11. In mammals how much CO(2) is transported as bicarbonates of soidum and...

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

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  13. Chloride shift is essential for the transport of

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  14. what is true for CO(2) concentration ?

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  15. The two waste products of oxidation in cells are

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  16. The function of tracheal hair to

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  17. The function of surfactant is/are

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  18. During cellular respiration the energy produced is stored in " ...

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  19. Exhalation is the process of expulsion of air through the respiratory ...

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  20. Respiration is the physilogical process in which

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