Glycocalyx and its features
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In the prokaryotic cells , the cell envelope is made of three layers but it act as single protective layer. the Glycocalyx is the outermost layer . it is composed of polysaccrides and some proteins. Its major role is protection and adhesion .
It is of two types :
a) SLIME LAYER which is loose and thin . it prevents water and minerals lose
b) CAPSULE which is rigid and thick . it provides sticky surface and also hides from immune host system . therefore the capsulated bacteria are pathogenic .
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