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Haemoglobin is an Oxygen carrier. Explai...

Haemoglobin is an Oxygen carrier. Explain.

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Haemoglobin is called oxygen carrier because about 97% of the oxygen is transported by RBCs. RBCs contain haemoglobin. Haemoglobin has affinity towards oxygen. Hence haemoglobin binds with oxygen molecules to form oxyhaemoglobin.
`Hb + 4O_(2) overset("In lungs")(rarr) Hb(O_(2))_(4) ` or `HbO_(8)`
Oxyhaemoglobin is a very unstable compound. Hence it dissociates into haemoglobin, and molecular oxygen, when it reaches tissues.
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SUBHASH PUBLICATION-BREATHING AND EXCHANGE OF GASES-TWO MARK QUESTIONS AND ANSWERS
  1. Explain Hamburger's phenomenon.

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  2. What are the changes that takes plate during inspiration?

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  3. Write any four differences between inspiration and expiration.

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  4. Briefly explain external respiration.

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  5. Differentiate external respiration from internal respiration.

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  6. Haemoglobin is an Oxygen carrier. Explain.

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  7. Mention the function of nasal cavity during breathing.

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  8. Mention the various parts of human respiratory system in their connect...

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  9. Define vital capacity . What is its significance?

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  10. How is respiration regulated?

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  11. What is the effect of P(CO(2)) on oxygen transport?

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  12. What happens to the respiratory process in a person going up a hill ?

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  13. What is the site of gaseous exchange in an insect ?

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  14. What is Tidal volume ? Find out the Tidal volume ( approximate value )...

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  15. Diffusion of gases occurs in the alveolar region only, and not in the ...

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  16. A fluid-filled double membranous layer surrounds the lungs. Name it, a...

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  17. Arrange the following terms based on their volumes in an ascending ord...

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  18. Complete the missing terms : ( a) Inspiratory Capacity ( IC ) = "….....

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  19. State the different modes of CO(2) transport in blood.

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  20. For completion of the respiration process, write the given steps in th...

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