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(b) How does O(2) enter the blood from ...

(b) How does `O_(2)` enter the blood from lungs? (c) Name the membrane covering the lungs.

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(b) `O_(2)` enters the blood from the lungs by diffusion due to pressure gradient `(P_(CO_(2))` of alveolar air is 100 mm Hg, `P_(O_(2))` of pulmonary blood is 40 mm Hg).
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SANTRA PUBLICATION-BREATHING AND RESPIRATION-Short Answer Type Questions
  1. (b) Name the respiratory centres and mention their location in brain s...

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  2. (a) How does CO(2) enter the lungs from blood?

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  3. (b) How does O(2) enter the blood from lungs? (c) Name the membrane c...

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  4. (a) What is ventilation perfusion ratio?

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  5. (b) What is the effect of raised CO(2) concentration in arterial blood...

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  6. (a) Why the chloride concentration of RBC in venous blood is more than...

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  7. State the factors controlling respiration.

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  8. From where the rhythm of respiration is generated in the human body?

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  9. Explain why trachea does not collapse ?

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  10. Mention the amount of CO(2) in (a) 100 ml venous blood and (b) 100 ml...

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  11. Between O(2) and CO(2) which one is present more in arterial blood ?

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  12. Why is the amount of CO(2) less in expired air than that in alveolar a...

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  13. In which form is CO(2) carried in venous blood ?

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  14. (a) What is Apnoea ? (b) What are its causes? (c) What is Cheyne-stok...

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  15. (a) What is Mountain sickness? (b) What are its symptoms ?

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  16. (a) What is Active and Passive Smoking? (b) What are the effects of sm...

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  17. (a) What did you mean by anoxia or hypoxia? (b) Define anoxaemia?

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  18. Mention the location of Pharynx and Larynx.

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  19. What is Epiglottis? What is its function?

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  20. When and why the voice of male becomes deeper than in female?

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