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What is the thickess of diffusion membra...

What is the thickess of diffusion membrane ?

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Less than a mm
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Assertion: The diffusion membrane is made up of three major layers namely, the thin squamous epithelium of alveoli, the endothelium of alveolar capillaries and the basement membrane in between Reason: The total thickness of the diffusion membrane is much greater than a millimetre.

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AAKASH INSTITUTE-BREATHING AND EXCHANGE OF GASES -Try Yourself
  1. Which epithelium lines the alveoli ?

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  2. Which gas, out of O(2) and CO(2) is more soluble ?

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  3. What is the thickess of diffusion membrane ?

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  4. How many layers form the diffusion membrane ?

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  5. Why is CO(2) gas transferred from alveoil the atmospheric air ?

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  6. Which gas has higher partial pressure in tissues ?

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  7. What is the shape of O(2) dissociation curve for haemoglobin ?

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  8. Write any two factors that are favourable for the formation of oxyhaem...

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  9. Which compound is formed when O(2) binds with Hb ?

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  10. What are the conditions responsible for more binding of CO(2) with Hb ...

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  11. What is the percentage of CO(2) transported as bicarbonate ions ?

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  12. Write down the reaction facilitated by an enzyme carbonic anhydrase p...

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  13. How much CO(2) is delivered to the alveoli by every 100 ml of deoxygen...

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  14. what is the lcoation of pneumataxic centre in brain ?

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  15. How pneumotaxic centre regulates the respiratory rate ?

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  16. where is the chemosensitive area location in the brain which regulates...

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  17. To which substance chemosensitive area is highly sensitive ?

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  18. What happens to bronchi and bronchiloles during asthma ?

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  19. why is surface area for exchange of gases decreased during Emphysema ?

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  20. Give two examples of occupational respiratory disorders .

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