VIRUSES lesson 9: The Body Fights Back Quizellenj2026-03-12T13:56:08-04:00 Please sign up for the course before taking this quiz. 1. Interferon causes many anti-viral proteins to be made, and we know exactly what each one does.1 True False 2. Which of these cells will eat anything that is covered in Y-shaped antibodies?1 B cell macrophage T cell NK cell 3. 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. 4. All the viral sensors are designed to stimulate production of interferon (IFN).1 True False 5. The Y-shaped antibodies that B cells make will stick to any virus.1 True False 6. Killer T cells must get permission from T helper cells before killing a body cell.1 True False 7. Which organelle digests things?1 ER Golgi body lysosome mitochondria 8. Which of these is NOT a sensor molecule?1 RIG-1 TLR-3 MDA-5 MHC-1 9. Which of these cells has a perforin gun?1 B cell dendritic cell macrophage NK T helper 10. Some of your cells were built with atoms and molecules that used to be part of viruses.1 True False 11. What are granzymes?1 Granular proteins that self-assemble to make a hole. Enzymes that digest all the proteins in the host cell. Chemical toxins that tell the cell to shred its DNA. 12. Why do the phagocytes (roaming eaters) have MHC-2 clips on their surface?1 For communication with other phagocytes. For sensing viral dsRNA. For showing bits of protein to T helper cells. Only for identification as "self." 13. This lesson showed all the cell types in the immune system.1 True False 14. Which cell can feel the absence of MHC-1 flags?1 macrophage killer T cell NK B cell 15. Skin is a good barrier against viruses because the outer layer is made of dead cells.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
