Per NCERT, which type of epithelium is found in BLOOD VESSEL walls and the lining of LUNG ALVEOLI — adapted for rapid GAS / FLUID exchange?
ASingle layer of thin, flat cells (squamous epithelium)
BMany-layered thick cells
CSpindle-shaped contractile cells
DTall pillar-like cells with hairs
Answer & Solution
Correct answer: A. Single layer of thin, flat cells (squamous epithelium)
Per NCERT §3.3.1 Table 3.2, exchange-adapted epithelium = single layer of thin flat cells. The other options describe protective / absorptive / muscle tissues.
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