The body has adapted defence mechanisms to protect itself against the entry of microorganisms.
Part of Combined ScienceHealth, diseases and micro-organism
Save to My Bitesize
Antibiotics are chemicals produced by fungi that kill or prevent the growth of bacteria.
Penicillin was the first antibiotic to be discovered.
Antibiotics are used to treat bacterial infections.
Antibiotics aren鈥檛 as specific as antibodies, meaning an antibiotic can be used to treat more than one type of bacterial infection.