How are plant cells and animals cells different?  

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Animal and plant cells are both eukaryotic and have a cell membrane and organelles, including a nucleus, mitochondria, and endoplasmic reticulum. They are different in that animal cells do not have a cell wall (but do have a cell membrane), while plant cells have a cell wall made out of cellulose. In addition, animal cells are round, while plant cells are rectangular in shape. Plant cells have chloroplasts, which they use to make their own food, while animal cells do not. Animal cells also have one or more small vacuoles, while plant cells have one large vacuole (taking up most of the cell's volume). All animal cells have centrioles, but only lower plant forms have centrioles in their cells. Finally, cilia are present in animal cells but not in most plant cells. 

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