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