Cell membrane, surrounded by cell wall ... plasmids are found in a few simple eukaryotic organisms. Prokaryotic cell DNA is a single molecule, found free in the cytoplasm; additional DNA is ...

The other type of hypothesis involves "autogenous" formation of internal membranes from ... Bacterium Planctomycete cell structure differs from that of all other known prokaryotes.

Eukaryotic and prokaryotic cells produce minute (40-1000 nm) membrane vesicles that are released into the local environment ... state of the organism and is subject to change upon environmental cues ...