What Does the Cell Wall Do?


A cell wall is the outer rigid layer that surrounds some cells. The main function of this tough but flexible part is to protect inner delicate organelles and also regulate the entry of substances in and out of the cell.
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Cell Wall
One of the most important distinguishing features of plant cells is the presence of a cell wall. The relative rigidity of the cell wall renders plants sedentary, unlike animals, whose lack of this type of structure allows their cells more flexibility... More »
Cell walls are only found in plant cells and are rigid and made of cellulose. They are fully permeable and their main function is to control the movement of substances in and out of the plant cells. When lignin is deposited on the cellulose layers, the cell wall become impermeable and very strong.
Cell walls are made of cellulose and are only found around plant cells. Cell walls are made of sugars called cellulose which provides a protected framework for a plant cell to survive. Cell walls also help a plant keep its shape. While they do protect the cells, cell walls and cellulose also allow plants to grow to great heights.
Cell wall provides protection and structural support to the plant cells. It acts as a filtering mechanism. It plays a role of pressure vessel and prevents over-extension when water enters the cells.
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