All prokaryotes are single-celled organisms. Let's compare prokaryotes and eukaryotes and select the characteristics that only apply to prokaryotes. • These cells do not contain membrane-bound organelles. • These cells do not have DNA contained in a nucleus. • These cells have DNA in a region called the nucleoid. • Some of these cells have structures like flagella and microvilli. • These cells have cell walls made of peptidoglycan and polysaccharides. • These cells do not have cell walls made of cellulose.
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Prokaryote and Eukaryote Prokaryote Eukaryote Different Same Different Word Bank Cells have nucleus Bacteria Have a cell membrane Small and simple Can be unicellular or multicellular All are unicellular Have cytoplasm Some have cilia Cells have organelles Some have flagella Most cells have cell walls Have DNA Were the first cells No organelles Have cytoskeleton Have ribosomes Include Archaea
Madhur L.
Cells are categorized as either prokaryotic or eukaryotic. Classify the characteristics that are unique to prokaryotic cells, common to both cell types, and unique to eukaryotic cells. Move each description into the correct category:
Which of the following best distinguishes a prokaryotic cell from a eukaryotic cell? a. Prokaryotic cells have a cell wall, but eukaryotic cells never do. b. Prokaryotic cells are much larger than eukaryotic cells. c. Prokaryotic cells have flagella, but eukaryotic cells do not. d. Prokaryotic cells do not have a membrane-bound nucleus, but eukaryotic cells do have such a nucleus. e. Prokaryotic cells have ribosomes, but eukaryotic cells do not have ribosomes.
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