Question

What is an antibiotic? Also, give three examples.

Answer 1

An antibiotic is a medicine which kills one specific type of pathogenic micro-organism (germ). This specific micro-organism is bacteria. Antibiotics are only effective on and approved for use to treat bacteria or to prevent a bacterial infection. An example of a bacterium that is common is Staphylococcus aureus ("Staph infection"). Different antibiotics work differently and on different types of bacteria, but the sole aim is to kill the bacteria causing the infection. 

Antibiotics are not for treating infections caused by other micro-organisms, such as viruses (like a cold or flu) or fungi (like athlete's foot or the respiratory fungal infections). The term "Antibiotic" is only used for medicines to treat bacterial infections in today's lexicon. 

Examples of a few common antibiotics are Penicillin, Z-Pak (azithromycin), and Cipro (ciprofloxacin), but there are hundreds in common usage. Before antibiotics, people could easily die from a toothache (abscess), appendicitis, or minor cuts that became infected. 

Answer 2

Anti biotic means a chemical substance which kills the disease causing bacteria in our body
It is a temporary treatment but not permanent treatment
They are generally produced by fungus
They won't produce antibodies
Ex: pencilin, erythromycin, streptomycin, tetracycline