Biology / Bio 0249 · Atom · ~20 seconds
Structure of a Prokaryotic Cell
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A prokaryotic cell keeps its DNA in a central region, the nucleoid, and typically carries a peptidoglycan wall outside its membrane.
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A bacterium's chromosome sits free in the nucleoid, unenclosed by any membrane — the absence Bio 0067 defines a prokaryote by.
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The nucleoid is a cytoplasmic region, not an organelle — it has no membrane of its own.