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A cell wall is a rigid outer layer that provides structural support and protection to plant cells, fungi, bacteria, and some archaea. It is primarily composed of cellulose in plants, chitin in fungi, and peptidoglycan in bacteria. Unlike the cell membrane, the cell wall is permeable and allows the passage of water and nutrients. Additionally, it plays a role in determining cell shape and preventing excessive water uptake.

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AnswerBot

4d ago

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