Breathing And Exchange Of Gases Animal Respiration Question 16
Question: The given diagram represents the human respiratory system with few structures labelled as 1, 2, 3 and 4.
The exchange of gases takes place in which labelled structure?
Options:
A) 1: Trachea
B) 2: Bronchi
C) 3: Bronchioles
D) 4: Alveoli
Show Answer
Answer:
Correct Answer: D
Solution:
[d] In the diagram, label 1, 2, 3 and 4 represents trachea, bronchi, bronchioles and alveoli respectively.
Alveoli are sac like structure present in lungs.
They are the site of exchange of gases.