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eukaryote (u-karŽe-ōt)   an organism of the Eucaryotae, whose cells (eukaryotic cells) have a true nucleus that is bounded by a nuclear membrane, contains the chromosomes, and divides by mitosis. Eukaryotic cells also contain membrane-bound organelles, such as mitochondria, chloroplasts, lysosomes, and the Golgi apparatus. Plants and animals, protozoa, fungi, and algae (except blue-green algae) are eukaryotes. Other organisms (the bacteria) are prokaryotes.




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