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