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Diagram of a prokaryotic cell, a bacterium with a flagellum. A prokaryote (/ p r oʊ ˈ k ær i oʊ t,-ə t /; less commonly spelled procaryote) [1] is a single-celled organism whose cell lacks a nucleus and other membrane-bound organelles. [2]
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English: A diagram of a typical prokaryotic cell. This diagram, made in Adobe Illustrator , is an improved version of a similar diagram, Prokaryote cell diagram.svg , which was also made by LadyofHats .
The DNA of a prokaryotic cell consists of a single circular chromosome that is in direct contact with the cytoplasm. The nuclear region in the cytoplasm is called the nucleoid. Most prokaryotes are the smallest of all organisms, ranging from 0.5 to 2.0 μm in diameter. [1] [page needed] A prokaryotic cell has three regions:
Simple English; Slovenčina; ... Download QR code; Print/export Download as PDF; ... Prokaryotic cells (2 C, 1 P) G. Prokaryote genes (1 C, 25 P) P.
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The Pelagibacterales are an order in the Alphaproteobacteria composed of free-living marine bacteria that make up roughly one in three cells at the ocean's surface. [2] [3] [4] Overall, members of the Pelagibacterales are estimated to make up between a quarter and a half of all prokaryotic cells in the ocean.
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