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