<P> A cell wall is a structural layer surrounding some types of cells , situated outside the cell membrane . It can be tough , flexible , and sometimes rigid . It provides the cell with both structural support and protection , and also acts as a filtering mechanism . Cell walls are present in most prokaryotes ( except mycoplasma bacteria ) , in algae , plants and fungi but rarely in other eukaryotes including animals . A major function is to act as pressure vessels , preventing over-expansion of the cell when water enters . </P>
<P> A cell wall is a structural layer surrounding some types of cells , situated outside the cell membrane . It can be tough , flexible , and sometimes rigid . It provides the cell with both structural support and protection , and also acts as a filtering mechanism . Cell walls are present in most prokaryotes ( except mycoplasma bacteria ) , in algae , plants and fungi but rarely in other eukaryotes including animals . A major function is to act as pressure vessels , preventing over-expansion of the cell when water enters . </P>
where is the cell wall found in plants
where is the cell wall found in plants
situated outside the cell membrane
situated outside the cell membrane