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Why do plant cells need a cell wall?

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Plant cells have several structures not found in other eukaryotes. In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants to have rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change size. read more

Microfibril have a tensile strength relative to steel and are responsible for the strength of cell walls. The cell wall additionally contains proteins and lignin. The lack of cell walls in animals allows greater flexibility of the cells, as is necessary for locomotion. read more

Plant cells need a cell wall to maintain shape, structure and rigidity. Animal cells don't need cell walls because they have micro filaments and micro tubules to hold the shape of the cell. The cell wall of the plant cell is made up of cellulose. Cellulose is a complex carbohydrate. read more

Plant cells are actively involved in water transportation, and thus plant cell wall ensures that the cell does not burst due to over expansion as water flows in (internal turgor pressure). It helps to maintain the shape and osmolarity of thecells and acts as defense against pressure due to inflow of water. read more

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