Question

why basement membrane is non living and non cellular

Answer 1

Basement membrane is a non-cellular structure which consists of two layers: (i) Basal Lamina: It is outer thin layer (near the epithelial cells), composed of mucopolysaccharides and glycoproteins, both secreted by epithelial cells.

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Answer 2

The base membrane is a thin , fabrous extra cellular matrix of tissue that separates the lining of an internal and external body surface from underlying connective tissue in metazoans