Zoology-(general)
NEET Zoology (general) MCQ Question
Type: MCQ-diagram based-Easy-Class 11
A diagram shows a cross-section of the diffusion membrane involved in gas exchange in the lungs. Which layer is responsible for providing structural support between the alveolar epithelium and capillary endothelium?
A
Basement membrane
B
Squamous epithelium
C
Endothelial cells
D
Alveolar capillaries
Correct Answer
Option A
Detailed Explanation
The diffusion membrane is composed of three layers: the thin squamous epithelium of alveoli, the endothelium of alveolar capillaries, and the basement substance (basement membrane) in between. The basement membrane provides structural support.
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