VIRUSES lesson 5: How Viruses Enter Cells Quizellenjmchenry2021-10-01T23:31:57-04:00 Please sign up for the course before taking this quiz. Which of these is NOT a glycoprotein?1 NA (neuraminidase) the receptor on which sialic acid is found RNA HA (hemagglutinin All viruses need to merge (fuse) with the host membrane.1 True False CD4 is found on T cells, which are important members of your immune system. Which virus attaches to CD4?1 Influenza A Adenovirus HIV Polio Cell can’t communicate because they can’t talk.1 True False Which receptor does coronavirus attach to?1 CD155 CD4 ACE2 CAR REVIEW: Which cycle is the one where the virus hides for a long time inside the host’s genome?1 lysogenic lytic Some enzymes act like scissors.1 True False Which one of these could NOT be a type of influenza?1 H5N7 H12N3 H2N2 H1H3 What does “clathrin coating” of an endosome do?1 It acts like a scaffold, helping the endosome to form. It pulls the endosome along a microtubule, toward the nucleus. It helps the virus to bind to the endosome membrane. It acts like a scissor and cuts the endosome from the membrane. Some viruses can stick to red blood cells.1 True False Cells have identification tags.1 True False Which is true of a motor protein?1 It is made of amino acids. It uses ATP energy to "walk" along the microtubule. It pulls endosomes through the cell. It travels along microtubule "highways" made of protein "cables." All of these. Can you remember which of these is a naked virus with no envelope?1 HIV coronavirus polio influenza Cell receptors where viruses bind were first discovered while Mrs. McHenry (the author) was a young adult.1 True False Why are the proton pumps so important in these lessons?1 Because they are needed for the clathrin coating to be formed around the endosome. Because they are needed for the virus to be able to attach to a binding site. Because viruses use the protons as an energy source so they can move. Because viruses need low pH to cause shape changes that will allow it to get out of the endosome. VIRUSES lesson 4: Bacteriophages VIRUSES lesson 6: Inside a Cell Back to: VIRUSES lesson 5: How Viruses Enter Cells
