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زیست شناسی::
دیواره سلولی
They are bounded by a cell wall whose thickness ranges between 0.1 and 10 µm and is com- posed of cellulose.
A plant cell (not an animal cell) also consists of a cell wall surrounding the plasma membrane which provides tensile strength and protection against mechanical and osmotic stress
All cells are enclosed by cell envelopes which consist of cell walls covering plasma membranes.
Cell walls are semipermeable membranes which permit the trans- port of water easily but not solute molecules.
Cell walls would be expected to burst under such large pressures.
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