Penicillin is a antibiotics which comes under the class of beta lactam anti biotics ..
ALEXANDER FLAMING had discover the first antibiotic
Antibiotics are the class of anti microbial and anti bacterial substance active against bacteria they are fight against bacteria it may kill or inhibit the growth of bacteria
Beta lactam antibiotics are bacteriocidal act by inhabiting the synthesis of peptidoglycan layer
Of the bacterial cell wall this wall is essential for normal development of peptidoglycan. It is heteropolymeric component of the cell wall that provide rigid mechanical stability by vertue of its highly cross linked lattice vice structure
There are many examples pf penicillin like ampicillin , amoxicillin, penicillin G, penicillin V, oxacillin,methicillin
This are used to trate or prevent infection pf bacteria like eye infection, meningitis, UTI, upper and lower respiratory infections etc it is use in many infection ..