VIRUSES lesson 9: The Body Fights Back Quizellenjmchenry2021-10-01T23:32:10-04:00 Please sign up for the course before taking this quiz. Which organelle digests things?1 mitochondria lysosome ER Golgi body Interferon causes many anti-viral proteins to be made, and we know exactly what each one does.1 True False Which cell can feel the absence of MHC-1 flags?1 macrophage NK B cell killer T cell Killer T cells must get permission from T helper cells before killing a body cell.1 True False The Y-shaped antibodies that B cells make will stick to any virus.1 True False Which of these cells will eat anything that is covered in Y-shaped antibodies?1 macrophage B cell T cell NK cell Which of these is NOT a sensor molecule?1 TLR-3 RIG-1 MDA-5 MHC-1 How does RIG-1 work?1 It bends in half when triggered. It goes into the nucleus when triggered. Its shape straightens out when it is trigger. It kills viruses when triggered. 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. Why do the phagocytes (roaming eaters) have MHC-2 clips on their surface?1 For sensing viral dsRNA. For showing bits of protein to T helper cells. Only for identification as "self." For communication with other phagocytes. This lesson showed all the cell types in the immune system.1 True False Skin is a good barrier against viruses because the outer layer is made of dead cells.1 True False Some of your cells were built with atoms and molecules that used to be part of viruses.1 True False All the viral sensors are designed to stimulate production of interferon (IFN).1 True False Which of these cells has a perforin gun?1 dendritic cell NK T helper B cell macrophage VIRUSES lesson 8: Viruses Inside Cells VIRUSES lesson 10: Vaccines and anti-virals Back to: VIRUSES lesson 9: The Body Fights Back
