| Antibiotic |
Site
of
Action |
Effect |
| Penicillin,
Cephalosporin |
Cross
linking
of
peptidoglycan |
Inhibits
Bacterial
Cell
Wall
synthesis |
| Streptomycin,
Chloramphenicol |
30s
ribosome
subunit
translation
of
mRNA
on
50s
ribosome |
Inhibits
bacterial
protein
synthesis |
| Erythromycin |
50s
ribosome |
Inhibits
bacterial
protein
synthesis |
| Rifampicin |
RNA
polymerase |
Inhibits
mRNA
synthesis |
| Nalidixic
Acid |
DNA
gyrase |
Inhinits
DNA
replication |
| Polymixin |
Cell
Membrane |
Destroys
membrane
functions |
