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