The cell wall is semi-permeable.The membrane is permeable and controls the movement of the substance into and outside the cell. That is, it can allow water and other substance to pass through selectively. Functions include protection from the external environment.
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https://byjus.com/biology/cell-wall-and-cell-membrane/
Answer: A cell wall provides the cell with both structural support and protection, and also acts as a filtering mechanism.
Cell membrane protects the cell by acting as a barrier. regulates the transport of substances in and out of the cell.
receives chemical messengers from other cell. acts as a receptor. cell mobility, secretions, and absorptions of substances.
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