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Prokaryotic cells

Cells without a defined nucleus.

Bacteria and archaea lacking membrane-bound organelles. Carry DNA in a nucleoid region rather than a membrane-bound nucleus.

How one textbook covers it

Advanced Nutrition and Human Metabolism, 8th ed. (Gropper) — Glossary
Bacteria and archaea lacking membrane-bound organelles. Carry DNA in a nucleoid region rather than a membrane-bound nucleus.

Eukaryotic cells