Literally "before the nucleus", the term applies to all bacteria and archaea Prokaryotic cells have no internal membranes or cytoskeleton Their DNA is circular, not linear
Describes those cells, or organisms, that do not have their genetic material enclosed within a nucleus Bacteria and cyanobacteria are prokaryotic
Cells that do not have a membrane-bounded nucleus or membrane-bounded organelles
Unicellular organisms with a bacteria-like cell structure, lacking a nucleus and some other eukaryotic organelles, they may have photosynthetic pigments but lack chloroplasts, the specialized photosynthetic organelles in higher plants, and mitochondria, (see eukaryotic)