Zoology-Gas Exchange
NEET Zoology Gas Exchange MCQ Question
Type: MCQ-diagram based-Medium-Class 11
Consider a diagram showing the diffusion membrane involved in gas exchange in the human respiratory system. Which of the following correctly labels the layers of the diffusion membrane from the alveolus to the capillary?

A
Thin squamous epithelium, basement membrane, endothelium of capillaries
B
Endothelium of capillaries, basement membrane, thin squamous epithelium
C
Basement membrane, thin squamous epithelium, endothelium of capillaries
D
Thin squamous epithelium, endothelium of capillaries, basement membrane
Correct Answer
Option A
Detailed Explanation
The diffusion membrane is composed of three major layers: the thin squamous epithelium of alveoli, the basement membrane, and the endothelium of alveolar capillaries.
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