Introduction Mycoplasma are unique smallest free-living organism capable of self-replication no peptidoglycan cell wall able to deform into a wide range of shapes antibotics that attack the cell wall don't work login to view 1 more bullet cholesterol found in cell membrane the only bacterial membrane containing cholesterol however, does not synthesize cholesterol login to view 1 more bullet culture on Eaton's agar "fried-egg" appearance except M. pneumoniae 2 pathogenic species M. pneumoniae Ureaplasma urealyticum