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