AS Viruses

Why can't antibiotics be used to treat the common cold?

• Antibiotics can't reach the virus.

• The common cold mutates too quickly.

• The common cold is resistant to all antibiotics.

• Antibiotics target bacteria, not viruses.

What is a characteristic feature of all viruses?

• They are classified as living organisms.

• They all have a cell wall.

• They contain some type of genetic material.

• They can replicate without a host.

What happens to a host cell during the lytic cycle?

• It is destroyed when new viruses burst out.

• It retains the viral DNA permanently.

• It becomes immune to further infections.

• It divides into two new cells.

What triggers the transition from the lysogenic to the lytic cycle?

• The cell's immune system.

• The host cell dying naturally.

• External factors like chemicals.

• The virus deciding to change cycles.

How can viruses be beneficial in medical science?

• By strengthening the immune system.

• By mutating to become harmless.

• Through their use in gene therapy.

• By serving as antibiotics.