Zoology-Gas Exchange
NEET Zoology Gas Exchange MCQ Question
Type: MCQ-diagram based-Easy-Class 11
A diagram shows the human lung with labeled parts A, B, C, and D. Label A is pointing to the site of actual gas exchange between blood and atmospheric air. What is label A indicating?
A
Alveoli
B
Trachea
C
Bronchi
D
Nasal cavity
Correct Answer
Option A
Detailed Explanation
Alveoli are the structures in the lungs where the actual diffusion of O2 and CO2 between blood and atmospheric air occurs, as described in the NCERT context related to gas exchange.
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