STANDARDZoology-Respiratory System
STANDARD Zoology Alveoli Function MCQ Question
Type: MCQ-conceptual-Easy
Mammalian lungs have an enormous number of minute alveoli (air sacs). It is to allow
A
More space for increasing the volume of inspired air
B
More surface area for diffusion of gases
C
More spongy texture for keeping lungs in proper shape
D
More nerve supply to keep organs active when working
Correct Answer
Option B
Detailed Explanation
Alveoli are tiny sacs within our lungs that allow oxygen and carbon dioxide to move between lungs and bloodstream. They increase surface area for diffusion of gases.
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