VIRUSES lesson 4: Bacteriophages Quizellenj2022-07-18T21:51:40-04:00 Please sign up for the course before taking this quiz. 1. From which cell part does herpes get its envelope?1 from the ER from the nucleus from the Golgi body from the outer (plasma) membrane 2. What does the poliovirus do in its replication complexes?1 Makes copies of its genome Does its entire life cycle Assembles the capsids Makes capsid proteins 3. Which of these cell receptors does poliovirus use?1 CD155 heparan sulfate ACE2 sialic acid CD4 MHC1 4. Which of these is NOT true about poliovirus?1 It doesn't carry any protein tools in its capsid. It leaves the cell by budding. It has an IRES region at the 5 prime end of its RNA. It has a small genome. 5. Chickenpox is not really a pox family virus.1 True False 6. Which virus chops and shreds cellular DNA inside the nucleus?1 both herpes polio neither 7. Why does herpes stop the ER from making MHC1 flags?1 So more ATP energy will be available for making viral proteins. So the cell will lose its ability to identify itself. So the infected cell can't alert immune system cells about the viral activity going on inside. 8. Proteins “scissors” (proteases) can cut any protein.1 True False 9. Both polio and herpes are viruses that like to migrate into nerve cells.1 True False 10. Which of these is NOT true of herpes simplex?1 It enters the body through intestinal cells. It has several different kinds of glycoprotein spikes. It assembles its capsids in the nucleus. Most people are infected with at least one type of herpes virus. 11. Which one of these events in the life cycle of herpes occurs outside the nucleus?1 Transcription of mRNAs Assembly of the capsids Replication of the genome Manufacturing of glycoproteins 12. Polio and herpes are equally destructive to Golgi bodies.1 True False 13. There are many herpes family viruses that don’t infect humans.1 True False 14. How long can a herpes virus stay in its lysogenic (dormant) stage?1 Until the host catches another virus. For almost a year. For the lifetime of the host. Until the host reaches adulthood. For several months. 15. Which of these is NOT a job done by one of herpes’ tegument proteins?1 Helping the capsid get out of the nucleus. Attaching to a receptor on the surface of a cell. Starting the production of immediate early mRNAs. Chopping and shredding cellular mRNAs VIRUSES lesson 3: History of discovery VIRUSES lesson 5: How Viruses Enter Cells Back to: VIRUSES lesson 4: Bacteriophages
