Features of Prokaryotic Cells

• capsule


  some bacteria, protective layer for extreme living environment
• plasmid


  some bacteria, small circular DNA/few genes
• mesosome


  some bacteria, infolding of plasma, primitive mitochondria
• thylakoid


  some bacteria, for photosynthesis
• chlorophyll 


  some bacteria, pigment to capture light
• fimbriae


  some bacteria, bristle like structures for adhesion to surfaces
• pilus


  some bacteria, for gene transfer
• flagellum


  some bacteria, looks like a tail used for motility
• cell wall


  all bacteria, peptidoglycan is an essential componen to protect bacteria
• plasma membrane


  all bacteria, regular lipid bilayer
• cytoplasm


  all bacteria, water like liquid contains DNA, RNA, ribosomes, enzymes
• DNA


  all bacteria, circular instead of linear like an eukaryotic cell, without histones
• RNA


  all bacteria, mRNA and tRNA in cytoplasm
• ribosome


  all bacteria, produces proteins