prokairiyotik koshika
ye praarambhik 'koshikaaen hain. iname kendrak kala naheen paayi jaati hai. prokairiyotik koshika mein koi spasht kendrak naheen hota hai. kendrakeeya padaarth koshika drav mein bikhre hote hain. in koshikon ke kalaaviheen kendrak ko aaranbhi kendrak kehte hain. in koshikon mein kloroplaast, gauljeebaadi, taarakakaaya, maaikrokaandriya tatha ant: dravyeejaalika (E.R.) naheen paayi jaati hai. fir bhi 70S prakaar ke raaibosoms paaye jaate hain tatha inmein DNA histon proteen se sambaddh naheen hota hai.
neele- hare shaivaalon tatha jeevaanuon mein ye koshikaaen paayi jaati hain.