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CBSE Class 9 Answered

a tricky question
Asked by pritam | 14 Oct, 2009, 10:27: PM
Expert Answer

In case of skin, the stratified squamous epithelium is keratinised whereas the lining of the oesophagus is an example of a non-keratinised or "moist" stratified epithelium.

(In case of keratinised stratified epithelium, the most exterior layers of cells are dead and lose their nucleus and cytoplasm, instead they contain a tough, resistant protein called keratin. This specialisation makes the epithelium waterproof, so is found in the mammalian skin.)

Answered by | 15 Oct, 2009, 06:58: AM
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