The cells of all prokaryotes and eukaryotes possess two basic features: a plasma membrane, also called a cell membrane, and cytoplasm. However, the cells of prokaryotes are simpler than those of eukaryotes. For example, prokaryotic cells lack a nucleus, while eukaryotic cells have a nucleus. read more
Gram Negative Bacteria have an outer membrane, plus periplasmic space and porins (membrane channels) *Gram Postive do NOT have this outer membrane. read more