gram positive bacteria lipid membrane

membrane thick lipid magnification protein bacterium peptide biology microbiology acid science row three dimensional micro organism biochemistry bilayer biological cell microscopic animal grampositive bacteria gram stain closeup stained cut purple scientific experiment structure process front view built lipoteichoic wall teichoic transmembrane mechanism germ background porin microbe array outer polypeptides peptidoglycan bacterial bacteriology positive plasma microbial isolated 3d microorganism violet cellular rendering biochemical close