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cell walls are in plant cells, because the cell wall is rigid (up to many micrometers in thickness) and gives plant cells a very defined shape. While most cells have a outer membrane, none is comparable in strength to the plant cell wall. The cell wall is the reason for the difference between plant and animal cell functions. Because the plant has evolved this rigid structure, they have lost the opportunity to develop nervous systems, immune systems, and most importantly, mobility. An animal cell floats freely in the body, so it doesn't need a cell wall, and can't live with a cell wall.

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Related Questions

Is the cellulose cell wall in plant or animal cells?

Only plant cells have a cell wall. Animal cells do not have cell walls.


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What is the different in a animal cell and a plant cell?

animal cells have a nucleus and plant cells do not. Animal cells also have a cell wall.


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what organelle are present in plant cell that are absent in animal cell?

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What do plant cells have that animal cells do not have?

Plant cells have chloroplasts (which make food for the plant through photosynthesis) and a cell wall. Animal cells do not; they only have a cell membrane (plant cells have a cell membrane and a cell wall).


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