Zoology - Breathing and Exchange of Gases Question with Solution | TestHub
ZoologyBreathing and Exchange of GasesHuman Respiratory SystemEasy2 minPYQ_2020
ZoologyEasysingle choice
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,
Options:
Answer:
A
Solution:
At the altitude of 5400 meters, the low atmospheric pressure of O2will be too low so the solubility of oxygen in the blood will be very less hence the oxygen carried by each RBC will be too less. However, to fulfill the oxygen requirement of the body blood has to carry more oxygen to the body tissue, and this done by the increased number of RBCs.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Breathing and Exchange of GasesSubtopic:Human Respiratory System
⏱ 2mℹ️ Source: PYQ_2020
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