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