Zoology - Breathing and Exchange of Gases Question with Solution | TestHub

ZoologyBreathing and Exchange of GasesHuman Respiratory SystemEasy2 minPYQ_2008

ZoologyEasysingle choice

When a man inhales air containing normal concentration of $O_{2}$ as well as $CO$ he suffers from suffocation because

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Answer:

Solution:

Affinity of carbon monoxide for haemoglobin is 200 times more than oxygen. At 0.5 partial pressure, $CO$ combines with $50%$ of haemoglobin. It produces a relatively stable compound called carboxy-haemoglobin. This causes low supply of oxygen to the body which is characterised by headache, dizziness, nausea, etc.

Stream:AIIMSSubject:ZoologyTopic:Breathing and Exchange of GasesSubtopic:Human Respiratory System

⏱ 2mℹ️ Source: PYQ_2008

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