Prokaryote
Wikipedia.org
The prokaryotes (singular pronounced /proʊˈkæriət/) are a group of organisms that lack a cell nucleus (= karyon), or any other membrane-bound organelles. They differ READ MORE http://en.wikipedia.org/wiki/Prokaryote
Prokaryote cells are a group of organisms that lack a cell nucleus or any other membrane-bound organelles. They differ from the eukaryotes, which have a cell nucleus.