Which term refers to agents that kill harmful bacteria?

Which term refers to agents that kill harmful bacteria?

• A. Bactericidals
• B. Tuberculoidals
• C. Fungicidals
• D. Viricidals

Answer: (A)

The key idea is understanding how these -cidal terms describe what an agent does to microorganisms. When something is described as bactericidal, it means it kills bacteria. That’s exactly what’s meant by “agents that kill harmful bacteria.” So the best term here is bactericidal. It conveys the act of killing bacteria, which is essential when you want a product to eliminate bacteria on surfaces or skin. Fungicidal would refer to killing fungi, viricidal to viruses, and tuberculoidal isn’t a standard term used to describe broad bacterial-killing activity (it would more specifically suggest activity against tuberculosis). The important distinction is that only bactericidal targets bacteria in a lethal way, while the others target different types of organisms or aren’t commonly used as a broad descriptor for killing bacteria.

The key idea is understanding how these -cidal terms describe what an agent does to microorganisms. When something is described as bactericidal, it means it kills bacteria. That’s exactly what’s meant by “agents that kill harmful bacteria.”

So the best term here is bactericidal. It conveys the act of killing bacteria, which is essential when you want a product to eliminate bacteria on surfaces or skin.

Fungicidal would refer to killing fungi, viricidal to viruses, and tuberculoidal isn’t a standard term used to describe broad bacterial-killing activity (it would more specifically suggest activity against tuberculosis). The important distinction is that only bactericidal targets bacteria in a lethal way, while the others target different types of organisms or aren’t commonly used as a broad descriptor for killing bacteria.