Prokaryotes are organisms whose cells lack a nucleus and other organelles. Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique ...

Planctomycetes May Yield New Insights into the Eukaryote-Like Cell Biology of a Bacterium Planctomycete cell structure differs from that of all other known prokaryotes. We are not sure yet whether ...

Bacteria are amongst the simplest of organisms – they are made of single cells. Their cell structure is simpler than the cells of animals, plants and fungi.

Researchers have identified ancient proteins that may help explain how the first complex cells evolved from simpler ones over 15 billion years ago I ...