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