BrainPop Viruses

What would happen to a virus if it couldn't find a host cell to invade?

• It wouldn't be able to multiply

• It wouldn't be able to travel through the air

• Its genetic information would wither away

• It would survive indefinitely

Which term best describes viruses?

• miniscule

• gargantuan

• harmless

• sterile

What do viruses have in common with your body's cells?

• Their genetic material is surrounded by a nucleus

• They contain many complex organelles

• They contain DNA or RNA

• They are surrounded by capsids

What is the difference between DNA and RNA?

• RNA is a more complex molecule than DNA

• RNA contains genetic information; DNA does not

• DNA is a more complex molecule than RNA

• DNA contains genetic information; RNA does not

What's the difference between a pathogenic virus and a harmless one?

• Pathogenic viruses make copies of themselves; harmless ones don't

• Pathogenic viruses get inside cells; harmless ones don't

• Pathogenic viruses are surrounded by capsids; harmless ones aren't

• Pathogenic viruses end up killing cells; harmless ones don't

What do the viruses that cause HIV, hepatitis, and Ebola have in common?

• They cannot replicate inside human cells

• They are spread through contaminated water

• They are harmless viruses

• They can kill people

Which of the following is a true statement about viruses?

• They are only spread through person-to-person contact

• They can be spread in a number of different ways

• All of them are harmful to humans

• They can only be spread through exposure to animal waste

What does a virus do once it's inside one of your cells?

• It stays inside the cell for a while, and then leaves

• It eats up all of the machinery in the cell

• It uses the cell's machinery to make copies of itself

• It prevents the mitochondria from converting glucose to ATP

What can you infer about the virus that causes the common cold?

• It is harmless

• It is pathogenic, but not usually deadly

• It is usually deadly, but not pathogenic

• It cannot be spread by person-to-person contact

If you have a cold, why should you cover your mouth when you sneeze?

• To prevent other people from breathing in the viruses you expel

• To prevent viruses from infecting the cells in your nose and mouth

• To keep as many viruses as possible inside your body

• To get all of the cold viruses out of your body and onto your skin