VIRUSES lesson 9: The Body Fights Back Quizellenjmchenry2022-09-06T11:53:53-04:00 Please sign up for the course before taking this quiz. Skin is a good barrier against viruses because the outer layer is made of dead cells.1 True False How does RIG-1 work?1 It goes into the nucleus when triggered. It bends in half when triggered. It kills viruses when triggered. Its shape straightens out when it is trigger. Which of these is NOT a sensor molecule?1 MHC-1 MDA-5 RIG-1 TLR-3 Which cell can feel the absence of MHC-1 flags?1 B cell macrophage killer T cell NK This lesson showed all the cell types in the immune system.1 True False Interferon causes many anti-viral proteins to be made, and we know exactly what each one does.1 True False What are granzymes?1 Granular proteins that self-assemble to make a hole. Chemical toxins that tell the cell to shred its DNA. Enzymes that digest all the proteins in the host cell. Killer T cells must get permission from T helper cells before killing a body cell.1 True False Which of these cells has a perforin gun?1 dendritic cell B cell T helper macrophage NK Why do the phagocytes (roaming eaters) have MHC-2 clips on their surface?1 For communication with other phagocytes. For sensing viral dsRNA. For showing bits of protein to T helper cells. Only for identification as "self." All the viral sensors are designed to stimulate production of interferon (IFN).1 True False Which organelle digests things?1 lysosome Golgi body mitochondria ER Some of your cells were built with atoms and molecules that used to be part of viruses.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 NK cell B cell macrophage T cell VIRUSES lesson 8: Viruses Inside Cells VIRUSES lesson 10: Vaccines and anti-virals Back to: VIRUSES lesson 9: The Body Fights Back
