Question

Broad spectrum antibiotic is that which

• A. Acts on both pathogens and hosts
• B. Acts on all bacteria and viruses
• C. Acts on a variety of pathogenic micro-organisms
• D. Is effective in very small amounts

Answer 1

The correct option is C Acts on a variety of pathogenic micro-organisms

An antibiotic is a chemical substance that inhibits the growth of bacteria. They hinder the reproductive cycle of the bacteria inside the body of the host.

An antibiotic that is effective against a wide range of infectious microorganisms which includes both gram-positive and gram-negative bacteria is called a Broad-spectrum antibiotic, in contrast to a narrow-spectrum antibiotic, which is effective against specific families of bacteria. Amoxicillin, Levofloxacin, Streptomycin, and Tetracycline, etc. are some of the common broad-spectrum antibiotics.

So, the correct answer is 'Acts on a variety of pathogenic micro-organisms'.