All cells, whether they are prokaryotic or eukaryotic, have some common features. The common features of prokaryotic and eukaryotic cells are: 1  DNA, the genetic material contained in one or more chromosomes and located in a nonmembrane bound nucleoid region in prokaryotes and a membrane-bound nucleus in eukaryotes.
Penicillin antibiotics are used to treat treat urinary tract infections, upper respiratory tract infections, lower respiratory infections, skin infections, bacterial infections, gastrointestinal infections, meningitis, and pneumonia. They work by killing the bacteria that is causing the infection.
Ampicillin is the drug of choice for treating enterococcal urinary tract infection (UTI). However, don't rely on it as empiric therapy for just any UTI. The primary UTI pathogen is Escherichia coli, and the secondary pathogen is Klebsiella. Neither penicillin nor ampicillin provide adequate coverage of coliforms. In fact, up to 30% of E. coli strains and more than 50% of Klebsiella strains are resistant to ampicillin, Dr. Duff noted.