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People living at sea level have around 5...

People living at sea level have around `5` million RBC per cubic millimetre of their blood whereas those living at an altitude of `5400` metres have around `8` million. This is because at high altitude.

A

atomospheric `O_(2)` level is less and hence more RBC are needed to absorb the requaired amount of `O_(2)` to survive

B

there is more UV radiation which enhances RBC production

C

people eat more nuttrivtive food therefore more RBC are formed

D

people get pollution free air to breath and more oxygen is availabeld

Text Solution

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The correct Answer is:
A
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-Breathing and Respiration -Exercise
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  2. what is vital capacity of our lungs

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  3. People living at sea level have around 5 million RBC per cubic millime...

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  4. Blood analysis of a patient reveals an unusually high quantity of carb...

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

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  6. The process of migration of chloride ions from plasma top RBC and of c...

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  7. Which one of the following orgnas in the human body is most affected d...

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  8. The exchange of gases in the alveoli of the lungs takes place by

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  9. In alveoli of the lungs the air at the site of gas exchange is separte...

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  10. Which one of the folllowing statement about blood constituents and tra...

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  11. The quantity 1500 mL in the respiratory volumes of a normal human adul...

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  12. At high altitude the RBCs in the human blood will

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  13. The carbon dioxide is transported via blood to lungs mostly

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

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  15. Air is breathed through

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  16. Oxyghen dissociation curve of haemoglobin ius

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  17. Carbon dioxide is transproted from tissues to respirtatory surface by ...

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  18. Carbonic anhydrase is mostly active in

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  19. Skin is an accesssory organ of respiration in

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  20. The alveolar epithelium in the lung is

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