The modes of action of antibiotics can be classified on the basis of the target site and, to some extent, to the alterations in structure produced.It is characterized by their action on the ribosome, resulting in the alteration of protein synthesis. Some antibiotics function by attaching to components involved in DNA or RNA synthesis, interfering with normal cellular processes and, as a result, compromised bacterial proliferation and survival. Quinolones, metronidazole, and rifampin are other examples. Antibiotics disrupt essential processes or structures in the bacterial cell. The bacterium is either killed or its development is slowed as a result of this. Antibiotics are classified as bactericidal or bacteriostatic based on their actions.