Question
Biology Question on Exchange Of Gases
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of:
A
Inspiratory Reserve Volume
B
Tidal Volume
C
Expiratory Reserve Volume
D
Residual Volume
Answer
Residual Volume
Explanation
Solution
Volume of air present in lungs after forceful expiration as residual volume which prevents the collapsing of alveoli even after forceful expiration.