VIRUSES lesson 4: Bacteriophages Quizellenj2022-06-02T15:24:14-04:00 Please sign up for the course before taking this quiz. 1. Every living cell is surrounded by at least one membrane made of lipids.1 True False 2. Which continent did d”Herelle never visit?1 North America Asia South America Antarctica Africa 3. Which one of these is NOT a viral part?1 membrane capsid collar DNA tail 4. What does a ribosome do?1 assembles virus parts dissolves proteins makes proteins duplicates DNA 5. Which one of these is NOT a bacteria part?1 endoplasmic reticulum nucleoid cytoskeleton membrane ribosome 6. Bactetiophages can slowly walk using their “legs” (tail fibers).1 True False 7. How fast can a bacteriophage do its entire replication process inside a cell?1 24 hours 30 minutes 3 hours 30 seconds 8. Some enzymes can dissolve (break apart) proteins.1 True False 9. What does “morphology” refer to?1 size change classification shape 10. What disease does “Yersinia pestis” bacteria cause?1 cholera typhus yellow fever Bubonic plague dystenery 11. Which of these diseases did d’Herelle not try to cure with phages?1 dystentery yellow fever plague cholera typhus 12. What type of bacteria does T4 attack?1 Dysentery Coccobacillus Yersinia pestis E. coli Typhus 13. What is the function of a phage’s tail fibers?1 To let it walk around. To inject the DNA. To attach to a receptor on the surface of the bacteria. To poke holes in the surface of the bacteria. 14. The lytic cycle allows the virus to hide for a long time.1 True False 15. Viral DNA is not the same as bacterial DNA.1 True False VIRUSES lesson 3: History of discovery VIRUSES lesson 5: How Viruses Enter Cells Back to: VIRUSES lesson 4: Bacteriophages
