What is cell wall????
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A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. ... The primary cell wall of land plants is composed of the polysaccharides cellulose, hemicelluloses and pectin.
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a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose.
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