Antiseptic best described as?

• A. A substance that inhibits the growth and development of microorganisms, particularly bacteria
• B. A substance that kills all microorganisms instantly
• C. A substance used to remove dirt from surfaces
• D. A substance that prevents the spread of viruses only

Answer: (A)

Antiseptics are substances applied to living tissue to reduce infection by microorganisms. They mainly work by slowing or stopping microbial growth and may kill some organisms, but they do not typically wipe out all microorganisms instantly. This makes the description that best fits antiseptics: a substance that inhibits the growth and development of microorganisms, particularly bacteria. It’s not about removing dirt (that’s cleaning), and while some antiseptics can act against viruses, their purpose isn’t limited to preventing the spread of viruses only.