Cells are categorized as prokaryotic or eukaryotic, with Bacteria and Archaea being prokaryotes and animal cells, plant cells, fungi, and protists being eukaryotes.
Cells fall into one of two broad categories: prokaryotic and eukaryotic. Only the predominantly single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes. Animal cells, plant cells, fungi, and protists are all eukaryotes.