Previous year MCQs

General science UPPSC 2021 GS-I
Question

Site of gaseous exchange in lungs is:

Answer & Solution

Answer: (Detailed Solution Below)

Option D: Alveoli

Detailed Solution:

The correct answer is “Alveoli”.
The alveoli are the key structures in the lungs where the exchange of gases—oxygen and carbon dioxide—occurs during the breathing process.

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