An antibiotic is defined as which of the following?

An antibiotic is defined as which of the following?

• A. Antiviral agent
• B. Medication used to treat bacterial infections
• C. Pain-relief medication
• D. Steroid hormone

Answer: (B)

Antibiotics are medicines that specifically target bacteria, either killing them or stopping their growth, to treat bacterial infections. This makes the definition precise: they treat infections caused by bacteria, not viruses or other conditions. Antiviral agents are designed to act against viruses, pain-relief medications alleviate symptoms without addressing the infection itself, and steroid hormones have unrelated effects and are not used to treat bacterial infections. So the statement that an antibiotic is a medication used to treat bacterial infections best captures its purpose and scope.

Antibiotics are medicines that specifically target bacteria, either killing them or stopping their growth, to treat bacterial infections. This makes the definition precise: they treat infections caused by bacteria, not viruses or other conditions. Antiviral agents are designed to act against viruses, pain-relief medications alleviate symptoms without addressing the infection itself, and steroid hormones have unrelated effects and are not used to treat bacterial infections. So the statement that an antibiotic is a medication used to treat bacterial infections best captures its purpose and scope.