AIPMT PRELIMS2012Zoology-Human Physiology
AIPMT PRELIMS 2012 Zoology Respiratory System MCQ Question
Type: MCQ-conceptual-Medium
People who have migrated from the planes to an area adjoining Rohtang Pass about six months back
A
Have the usual RBC count but their haemoglobin has very high binding affinity of O₂
B
Have more RBCs and their haemoglobin has a lower binding affinity of O₂
C
Are not physically fit to play games like football
D
Suffer from altitude sickness with symptoms like nausea, fatigue, etc
Correct Answer
Option B
Detailed Explanation
At high altitudes, the body adapts by increasing RBC count to improve oxygen transport, but the haemoglobin's affinity for oxygen decreases to facilitate oxygen release to tissues.
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