9th Class Science Why do we fall Ill?

  • question_answer 38)
      What is an antibiotic? Give two examples.

    Answer:

      Antibiotics are the drugs that are used to cure diseases caused by bacteria. There are different kinds of antibiotics which attack different processes and structures in bacteria to kill them or to stop their growth. First type of antibiotic stops the production of a compound needed for the growth of the cell wall of bacteria. This prevents the cell wall from expanding when the other parts of the cell are growing. As a result, the ceil bursts, which kills the bacteria, Penicillin, an important antibiotic, works in this way for streptococcal infections. Other types of antibiotics work by interfering in other processes such as the production of proteins, e.g., streptomycin for tuberculosis.


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