1. Prokaryotic, eukaryotic 2. Humans are eukaryotes. Like all other eukaryotes, human cells have a membrane-bound organelles and a definite nucleus 3. Bacteria are microorganisms made up of a single prokaryotic cell. There are two general categories of cells: prokaryotic and eukaryotic. Sometimes, organisms are referred to as prokaryotes or eukaryotes, based on the type of cell(s) that compose them. 4. Three similarities between prokaryotic and eukaryotic cells are that both have vesicles, vacuoles, and the ability to carry out the eight functions of life.