Which organism is not affected by antibiotics?

Which organism is not affected by antibiotics?

• A. Prions
• B. Fungi
• C. Bacteria
• D. Viruses

Answer: (D)

Antibiotics work by targeting features that bacteria have but human cells do not, such as components of their cell wall, bacterial ribosomes, or specific bacterial enzymes involved in DNA replication. Viruses aren’t living cells and don’t rely on those bacterial-specific structures or processes; they replicate inside host cells using the host’s machinery, so antibiotics have nothing to target without harming the host. That’s why a virus is not affected by antibiotics, even though antiviral drugs exist to interfere with viral replication. Prions are misfolded proteins, so antibiotics don’t affect them either. Fungi have their own distinct cellular features and are treated with antifungal drugs rather than standard antibiotics.

Antibiotics work by targeting features that bacteria have but human cells do not, such as components of their cell wall, bacterial ribosomes, or specific bacterial enzymes involved in DNA replication. Viruses aren’t living cells and don’t rely on those bacterial-specific structures or processes; they replicate inside host cells using the host’s machinery, so antibiotics have nothing to target without harming the host. That’s why a virus is not affected by antibiotics, even though antiviral drugs exist to interfere with viral replication.

Prions are misfolded proteins, so antibiotics don’t affect them either. Fungi have their own distinct cellular features and are treated with antifungal drugs rather than standard antibiotics.