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Which is correct ?...

Which is correct ?

A

a human lung has 1000 alveoli

B

respiratory centers are not affected by `CO_(2)`

C

during inspiration the lungs act as suction pump

D

in human vital capacity is just double the expiratory volume

Text Solution

Verified by Experts

The correct Answer is:
C
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TRUEMAN BIOLOGY-BREATHING AND EXCHANGE OF GASES -MULTIPLE CHOICE QUESTIONS
  1. Which one o the following is called inspiratory muscle in mammals?

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  2. During inspiration in mammals the sternum moves

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  3. Which is correct ?

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  4. The contraction of internal intercostal muscles in man causes

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  5. During forced expiration , actively contracting muscles

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  6. With refernce to human repiration which is correct ?

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  7. Rate of breathing in an adult human is

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  8. The breathing rate in a baby is

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  9. Which of the following statements best summarises the relationship bet...

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  10. which of the following conditions is responsible for increase in venti...

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  11. The exchange of gases between blood capillaries and alveoli in the lun...

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  12. Volume of air breathed in and out during normal breathing is called

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  13. Tidal volume in human being is

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  14. About 1200 mL of air is always known to remain inside the human lungs ...

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  15. The amount of air remaining in the air passages and alveloi at the end...

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  16. After deep inspiration, capacity of maximum expiration of lung is call...

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  17. Vital capacity of lungs is

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  18. vital capacity of lungs of an average human is

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  19. After the expiration of a normal tidal volume a person breathes in as ...

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  20. The maximum amount of air that our lung can normally hold is

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