Zoology - Breathing and Exchange of Gases Question with Solution | TestHub
ZoologyBreathing and Exchange of GasesHuman Respiratory SystemEasy2 minPYQ_2020
ZoologyEasysingle choice
A number of very thin, irregular-walled and vascularised bag-like structures are called as
Options:
Answer:
B
Solution:
Each lung, performing gaseous exchange, consists of a small balloon-like unit called an alveolus. The alveolus is lined by simple squamous epithelium. There are around 480 millions of very thin, irregular-walled, vascularised bag-like structures called alveoli in the human lungs.
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Breathing and Exchange of GasesSubtopic:Human Respiratory System
⏱ 2mℹ️ Source: PYQ_2020
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