a simple cell without internal membrane compartments
pro-CARE-ee-OT-ik SEL A cell that lacks organelles. Bacteria and cyanobacteria. 14, 63
(PRO-kare-ee-AW-tick) A cell that lacks a nucleus. Bacteria are prokaryotes. See eukaryotic cell.
A cell that does not have a membrane around its nuclear region; for example, a bacterium.
Cell that does not have a distinct nucleus. Other internal parts are also not enclosed by membranes. Compare eukaryotic cell.
A cell having no nuclear membrane and hence no separate nucleus.