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.
Quick Answer. Penicillin normally takes a few hours to about 5 days to take effect; however, it doesn't relieve pain. Penicillin is a combination of antibiotics that only protects the body from bacterial infection or treats the body against current infection. Penicillin normally inhibits the new bacteria, but it does not work when bacteria replicates.