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