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Which two of the following changes (A-D)...

Which two of the following changes (A-D) usually tend to occur in the plain dwellers when they move to high altitudes (3500 m or more )
(A) Increase in red blood cell size
(B) Increase in red blood cell production
( C) Increased breathing rate
(D) Increase in thrombocyte count

A

I and ii

B

ii and ii

C

iiii and iv

D

I and iv

Text Solution

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The correct Answer is:
B
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TRUEMAN BIOLOGY-BREATHING AND EXCHANGE OF GASES -MULTIPLE CHOICE QUESTIONS
  1. Respiratiory centre of brain is sensive to

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  2. Listed below are four respriatory capacities (i-iv) and four jumbled ...

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  3. Which two of the following changes (A-D) usually tend to occur in the ...

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  4. The figure given below shows a small part of human lung where exchange...

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  5. A large proportion of oxygen is left unused the human blood even after...

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  6. Which one of the following is the correct statement for respiration in...

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  7. People who have migrated from the planes to an area adjoining Rohtang ...

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  8. Which one of the following is a possibility for most of us in regards ...

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  9. Bulk of carbon dioxide (CO(2)) released from body tissues into the blo...

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  10. Oxygen dissociation curve of haemoglobin is

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  11. PH of blood in arteries and veins is

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  12. The left lung of human is divided in to

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  13. A major percentage of O(2) is transported by RBCs in the blood.What p...

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  14. What percent (%) of CO(2) is transported as bicarbonate (HCO(3)) with ...

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  15. Muscles contains a red coloured oxygen storing pigment called :-

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  16. Expiratory capacity is

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  17. The urge to inhale in humans results from

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  18. A person is suffering from frequent episodes of nasal discharge, nasal...

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  19. The exchange of materials between blood and interstitial fluid is by

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  20. Oxygen carrying capacity of human blood is reduced due to the pollutio...

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