VIRUSES lesson 9: The Body Fights Back Quizellenj2022-09-06T11:53:53-04:00 Please sign up for the course before taking this quiz. 1. Interferon causes many anti-viral proteins to be made, and we know exactly what each one does.1 True False 2. The Y-shaped antibodies that B cells make will stick to any virus.1 True False 3. Which of these is NOT a sensor molecule?1 TLR-3 MHC-1 RIG-1 MDA-5 4. What are granzymes?1 Enzymes that digest all the proteins in the host cell. Granular proteins that self-assemble to make a hole. Chemical toxins that tell the cell to shred its DNA. 5. All the viral sensors are designed to stimulate production of interferon (IFN).1 True False 6. Skin is a good barrier against viruses because the outer layer is made of dead cells.1 True False 7. Which cell can feel the absence of MHC-1 flags?1 NK B cell killer T cell macrophage 8. Killer T cells must get permission from T helper cells before killing a body cell.1 True False 9. Some of your cells were built with atoms and molecules that used to be part of viruses.1 True False 10. This lesson showed all the cell types in the immune system.1 True False 11. Which of these cells will eat anything that is covered in Y-shaped antibodies?1 B cell T cell NK cell macrophage 12. How does RIG-1 work?1 It kills viruses when triggered. It bends in half when triggered. It goes into the nucleus when triggered. Its shape straightens out when it is trigger. 13. Which organelle digests things?1 ER Golgi body mitochondria lysosome 14. Which of these cells has a perforin gun?1 T helper NK B cell dendritic cell macrophage 15. Why do the phagocytes (roaming eaters) have MHC-2 clips on their surface?1 For communication with other phagocytes. For showing bits of protein to T helper cells. For sensing viral dsRNA. Only for identification as "self." VIRUSES lesson 8: Viruses Inside Cells VIRUSES lesson 10: Vaccines and anti-virals Back to: VIRUSES lesson 9: The Body Fights Back
