People living at the sea level have around 5 million RBC per cubic millimeter of their blood whereas those living at an altitude of 5400 metres have around 8 million. This is because at high altitude:
(a) People get pollution free air to breathe and more oxygen is available
(b) Atmospheric O₂ level is less and hence more RBCs are needed to absorb the required amount of O₂ to survive
(c) There is more UV – radiation which enhances RBC – production
(d) People eat more nutritive food, so more RBCs are formed
Answers
Answered by
3
Answer: option b.
Explanation:
Answered by
0
Answer is option "B"
Explanation:
- 1 HB can bind the maximum 4 oxygen. Higher altitude reduces its binding capacity. At higher altitudes, the partial pressure is very less To utilize the less oxygen efficiently the RBC count is increased. The hormone called erythropoietin released by kidney gets increased and it stimulates RBC production.
- So, the correct answer is 'Atmospheric O2 level is less and hence more RBCs are needed to absorb the required amount of O2 to survive'.
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