In terms of differences, eukaryotic cells are much larger and more complex than prokaryotic cells. On average, a typical eukaryotic cell is about 1,000 X larger in volume than a typical prokaryotic cell.
This means both drugs (amoxicillin and penicillin) can treat a wide variety of infections. However, unlike amoxicillin and penicillin, the routinely prescribed drug, metronidazole, has a more selective action towards anaerobic bacteria. These bacteria are the ones causing the signs and symptoms of bacterial vaginosis.
  Without fully explaining how the penicillin antibitic works: yes, archaea are resistant to penicillin. This is because they don't have peptidoglycan in their cell wall. â¦ Penicillin works by lowering the newly formed peptidoglycan in multiplying bacteria.It also does other things.The reason it works (this is natural penicillin G) only on Gr+ is because the can't get through the GR-cell wall.his is because they don't have peptidoglycan in their cell wall. â¦ Penicillin works by lowering the newly formed peptidoglycan in multiplying bacteria. It also does other things.