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