Virus Review AP

What is the name for the protein shell that encloses a viral genome?

• Capsid
• Nucleoid
• Tail fibers
• Prion

What virus did Wendell Stanley study to determine that particles smaller than bacteria were causing plant disease?

• Tobacco Mosaic Virus
• Retrovirus
• Adenovirus
• Bacteriophage

What does it mean that viruses are "obligate intracellular parasites"?

• They can replicate only inside a host cell
• They can be passed from cell to cell
• They destroy cells
• They cannot affect parasitic organisms

What type of virus is pictured here?

• bacteriophage
• tobacco mosaic virus
• adenovirus
• influenza virus

The lytic and lysogenic cycle are reproductive cycles for what type of virus?

• bacteriophage
• tobacco mosaic virus
• adenovirus
• influenza virus

What is the purpose of glycoproteins on the virus's membranous envelope?

• Cell recognition
• Store energy
• Produce mRNA
• Hereditary information

Which type of virus infects bacteria?

• phage
• retrovirus
• influenza
• adenovirus

What is the purpose of reverse transcriptase used by retroviruses?

• To copy RNA into DNA
• To transcribe mRNA from DNA
• To destroy RNA and DNA
• To replicate amino acids

The flu vaccine is 100% effective.

• False
• True

When a virus rapidly spreads around the world this is known as ____.

• pandemic
• evolution
• lytic cycle
• retrospreading