
Mechanism of Action of Quinolones and Fluoroquinolones by inhibition of DNA gyrase (DNA topoisomerase)
Mechanism of Action of Quinolones and Fluoroquinolones

Older animation describing the mechanism of action of vancomycin by inhibition of peptidoglycan layer biosynthesis
Mechanism of Action of Vancomycin

Mechanism of Action of Penicillin- by inhibition of transpeptidase and preventing the remodeling of the peptidoglycan layer