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STD 11 - 14. Breathing and exchange in gases — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 14. Breathing and exchange in gases1 Mark
MCQ
Diffusion membrane is made up of
  • A
    Thin squamous epithelium of alveoli
  • B
    Endothelium of alveolar capillaries
  • C
    Basement substance in between the two mentioned above
  • ✓
    All of the above
✓

Answer

Correct option: D.
All of the above
d
Diffusion membrane is made up of three layers

$(i)$ Thin sequamous epithelium of alveoli. $(ii)$ Endothelium of alveolar capillaries. $(iii)$ Basement substance in between the squamous in epithelium of alveoli and endothelium of alveolar capillaries

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