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