Question

The antibiotics have no effect on viruses because

• A. Viruses show metabolism of their own
• B. Viruses are too small in size for antibiotics to act upon them
• C. Viruses show no metabolism of their own
• D. Viruses produce a thick covering and encyst themselves as endospore

Answer 1

Answer: (C)

Viruses show no metabolism of their own

• Antibiotics work by interfering with the metabolism generally, but viruses are parasites that can only reproduce inside a host cell.
• They have no metabolism of their own. Viruses use the molecular structures and functions of the infected cells.
• These are totally resistant to commonly used antibiotics. That's why antibiotics have no effect on viruses.

So, the correct answer is option C.