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Which of the following microorganisms can have a largely proteinaceous cell wall? bacteria prokaryotes eukaryotes archaea...

Which of the following microorganisms can have a largely proteinaceous cell wall?

bacteria
prokaryotes
eukaryotes
archaea
bacteria and eukaryotes
Science   Biology   
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Answer #1

The composition of cell walls varies among the different organisms. It also depends upon type of cell and developmental stage. The cell wall of plants is composed of the polysaccharides cellulose, hemicelluloses and pectin. Cell wall in algae is made up of glycoproteins and polysaccharides, while cell wall in bacteria is composed of peptidoglycan. In fungi cell walls are made up of chitin. The cell wall of archaea is made up of proteinaceous surface (S?) layer. These S?layer proteins possess the intrinsic ability to form two?dimensional crystals of different geometrical shapes. Apart from these, sugar polymers like pseudomurein, methanochondroitin or heteropolysaccharides are also found in archaeal cell walls.

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