of a bacterial cell structure shows cell wall, membranes, plasmid dna and flagellum.

scientific flagella graphic infectious human microorganism ribosome illustration plasma shape plasmid microscope bacillus vector disease prokaryote diagram membrane chromosome prokaryotic microbe medicine bacterium infection medical biology microbiology cytoplasm bacterial science bacteria cell structure component anatomy bacill nucleoid dna ribosom external capsule pili flagellum prokaryot microscopic organism