The only organisms with prokaryotic cells belong to the domains Bacteria and Archaea. These organisms are considered to be prokaryotes, which are characterized by being cells that do not possess a distinct nucleus. More »

Prokaryotic cells are single cells that evolved before eukaryotes, which are organisms whose cells contain nuclei and organelles. A prokaryotic cell has no true nucleus or membrane-bound structures called organelles. Pro... More »

Prokaryotic cells do not have a true nucleus. The word "prokaryotic" means "before nucleus." Eukaryotic cells, on the other hand, came after the prokaryotes and contain structures not present in prokaryotic cells. More »

Another name for prokaryotic cells is prokaryotes, simple life forms that consist of the kingdoms of Monera and Archaea. Prokaryotic is Greek for "before nucleus." More »

Archaea lack a cell nucleus and other organelles with membranes, so they are prokaryotic. They were originally believed to be a type of bacteria, the other major group of prokaryotes. More »

Bacteria are prokaryotic cells, which are characterized by a lack of a membrane-bound nucleus. They are typically simpler than eukaryotic cells, which have a membrane-bound nucleus and organelles responsible for cell fun... More »

Eukaryotic cells differ from prokaryotic cells in a number of ways, notably in size, complexity and cooperative behavior. The division between eukaryotes and prokaryotes is the deepest divide in nature, with two domains ... More »