VIRUSES lesson 5: How Viruses Enter Cells Quizellenjmchenry2020-06-04T18:28:08-04:00 Please sign up for the course before taking this quiz. What does “clathrin coating” of an endosome do?1 It acts like a scaffold, helping the endosome to form. It helps the virus to bind to the endosome membrane. It acts like a scissor and cuts the endosome from the membrane. It pulls the endosome along a microtubule, toward the nucleus. Cell receptors where viruses bind were first discovered while Mrs. McHenry (the author) was a young adult.1 True False Cells have identification tags.1 True False Cell can’t communicate because they can’t talk.1 True False Why are the proton pumps so important in these lessons?1 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. Because they are needed for the clathrin coating to be formed around the endosome. Which one of these could NOT be a type of influenza?1 H5N7 H1H3 H2N2 H12N3 Which of these is NOT a glycoprotein?1 RNA HA (hemagglutinin the receptor on which sialic acid is found NA (neuraminidase) Which is true of a motor protein?1 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. It is made of amino acids. Some enzymes act like scissors.1 True False All viruses need to merge (fuse) with the host membrane.1 True False Which receptor does coronavirus attach to?1 CD155 CAR CD4 ACE2 CD4 is found on T cells, which are important members of your immune system. Which virus attaches to CD4?1 Polio HIV Adenovirus Influenza A REVIEW: Which cycle is the one where the virus hides for a long time inside the host’s genome?1 lysogenic lytic Can you remember which of these is a naked virus with no envelope?1 polio coronavirus influenza HIV Some viruses can stick to red blood cells.1 True False VIRUSES lesson 4: Bacteriophages VIRUSES lesson 6: Inside a Cell Back to: VIRUSES lesson 5: How Viruses Enter Cells
Please sign up for the course before taking this quiz. What does “clathrin coating” of an endosome do?1 It acts like a scaffold, helping the endosome to form. It helps the virus to bind to the endosome membrane. It acts like a scissor and cuts the endosome from the membrane. It pulls the endosome along a microtubule, toward the nucleus. Cell receptors where viruses bind were first discovered while Mrs. McHenry (the author) was a young adult.1 True False Cells have identification tags.1 True False Cell can’t communicate because they can’t talk.1 True False Why are the proton pumps so important in these lessons?1 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. Because they are needed for the clathrin coating to be formed around the endosome. Which one of these could NOT be a type of influenza?1 H5N7 H1H3 H2N2 H12N3 Which of these is NOT a glycoprotein?1 RNA HA (hemagglutinin the receptor on which sialic acid is found NA (neuraminidase) Which is true of a motor protein?1 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. It is made of amino acids. Some enzymes act like scissors.1 True False All viruses need to merge (fuse) with the host membrane.1 True False Which receptor does coronavirus attach to?1 CD155 CAR CD4 ACE2 CD4 is found on T cells, which are important members of your immune system. Which virus attaches to CD4?1 Polio HIV Adenovirus Influenza A REVIEW: Which cycle is the one where the virus hides for a long time inside the host’s genome?1 lysogenic lytic Can you remember which of these is a naked virus with no envelope?1 polio coronavirus influenza HIV Some viruses can stick to red blood cells.1 True False
