Viruses - Amoeba Sisters Video

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

• Antibiotics can treat any infection.

• Antibiotics target viruses, not bacteria.

• The common cold is caused by a virus, and antibiotics target bacteria.

• The common cold is caused by bacteria.

Why are viruses not considered living organisms?

• They lack many characteristics of life.

• They are made of cells.

• They can replicate without a host.

• They contain no genetic material.

What is a characteristic feature of all viruses?

• They contain some type of genetic material.

• They are made of cells.

• They are classified as living organisms.

• They can replicate without a host.

What is the primary reason viruses need a host to replicate?

• Viruses lack the cellular machinery for replication.

• Hosts provide the necessary nutrients.

• Hosts prevent the virus from mutating.

• Viruses can replicate independently.

During which cycle do viruses hide their genetic material within the host's DNA?

• Lytic cycle

• Lysogenic cycle

• Replication cycle

• Protein synthesis cycle

What triggers a virus in the lysogenic cycle to enter the lytic cycle?

• The production of antibodies

• The host's immune response

• Chemical triggers or environmental changes

• Cell death

What role do Helper T cells play in the immune system?

• They produce antibodies.

• They are not involved in the immune response.

• They replicate viral DNA.

• They play an important role in protecting the body.

Why is HIV difficult to treat?

• It does not affect the immune system.

• It targets non-essential cells in the body.

• It can mutate, making treatments less effective.

• It is not a virus.

How can viruses be beneficial in gene therapy?

• By causing diseases

• By mutating rapidly

• By delivering genetic material to cells

• By killing host cells

What is a potential alternative to chemical pesticides mentioned in the video?

• Antibiotics

• Bacteriophages

• HIV

• Nuclear Polyhedrosis Virus