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Which of the following is ture for CO(2)...

Which of the following is ture for `CO_(2)` concentration ?

A

More in alveolar air than in expired air

B

More in expired air than in alveolar air

C

More in inspired air than in alveolar air

D

More in inspired air than in expired air

Text Solution

Verified by Experts

The correct Answer is:
A
Concentration or partial pressure of `CO_(2) (PCO_(2))` is `40` mm Hg in alveolar air and `32` mm Hg in expired air.
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NCERT FINGERTIPS ENGLISH-BREATHING AND EXCHANGE OF GASES-Breathing And Exchange Of Gases
  1. During CO(2) transport, HCO(3)^(-) diffuses from erythrocytes to plas...

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  2. Identify the correct statement with reference to transport of respirat...

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  3. Which of the following is ture for CO(2) concentration ?

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  4. In humans which of the following is not a step in respiration?

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  5. Although much CO(2) is carried in blood, yet blood does not become aci...

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  6. Haldane effect plays more important role in promoting carbon dioxide t...

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  7. During rest, the metabolic needs of the body are at their minimum. Whi...

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  8. Match column I with column II and select the correct option from the g...

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  9. Pneumotaxic center which can moderate the functions of the respiratory...

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  10. Match column I with column II an select the correct option from the co...

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  11. Chemosensitive area of respiratory centre in medulla is affected by

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  12. Fill up the blanks in the following paragraph by selecting the correct...

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  13. Rate of breathing is controlled mainly by

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  14. The respiratory centre in the brain is stimulate by

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  15. Complete the following sentence by selecting the correct option. Rec...

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  16. Complete the following sentence by selecting the correct option. the...

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

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  18. Statement I : Rate of breathing is regulated by respiratory centres ...

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  19. Read the following four statement (i) - (iv) with certain mistakes in ...

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  20. Human beings have a significant ability to maintain and moderate the r...

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