How can the use of antibiotics contribute to bacteria becoming resistant?

Bacterial DNA can spontaneously mutate, which means a change in the nucleotide reading frame. By chance, a mutation may cause the bacteria to prevent being killed by the antibiotic. For example, by developing a 'pump' to expel the antibiotic. Whilst the use of antibiotics does not directly cause resistance, the increased use can encourage the persistence of resistant bacteria and eventually resistant strains. Therefore, it is advised that antibiotics are only used when necessary to treat a bacterial infection, and the entire course of medication should be taken.

Answered by Carolina W. Biology tutor

1943 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

Describe how cell division by meiosis is different from cell division by mitosis.


Describe consecutive stages to Mitosis.


Why will antibiotics not cure the flu? Why should they not be overused?


How do bacteria develop resistance to antibiotics?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences