VIRUSES lesson 9: The Body Fights Back Quizellenjmchenry2022-09-06T11:53:53-04:00 Please sign up for the course before taking this quiz. Which organelle digests things?1 Golgi body lysosome ER mitochondria 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 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." 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 B cell NK cell T cell macrophage Which of these cells has a perforin gun?1 dendritic cell T helper macrophage B cell NK Which of these is NOT a sensor molecule?1 MHC-1 MDA-5 TLR-3 RIG-1 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. How does RIG-1 work?1 Its shape straightens out when it is trigger. It goes into the nucleus when triggered. It bends in half when triggered. It kills viruses when triggered. 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 B cell killer T cell macrophage NK Killer T cells must get permission from T helper cells before killing a body cell.1 True False This lesson showed all the cell types in the immune system.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
