VIRUSES lesson 5: How Viruses Enter Cells Quizellenjmchenry2020-06-04T18:28:08-04:00 Please sign up for the course before taking this quiz. Can you remember which of these is a naked virus with no envelope?1 HIV polio influenza coronavirus Some enzymes act like scissors.1 True False Some viruses can stick to red blood cells.1 True False Which receptor does coronavirus attach to?1 ACE2 CD155 CD4 CAR REVIEW: Which cycle is the one where the virus hides for a long time inside the host’s genome?1 lysogenic lytic CD4 is found on T cells, which are important members of your immune system. Which virus attaches to CD4?1 Polio Influenza A HIV Adenovirus All viruses need to merge (fuse) with the host membrane.1 True False Which is true of a motor protein?1 It pulls endosomes through the cell. It travels along microtubule "highways" made of protein "cables." All of these. It uses ATP energy to "walk" along the microtubule. It is made of amino acids. Cell receptors where viruses bind were first discovered while Mrs. McHenry (the author) was a young adult.1 True False 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 pulls the endosome along a microtubule, toward the nucleus. It acts like a scissor and cuts the endosome from the membrane. 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 need low pH to cause shape changes that will allow it to get out of the endosome. Because viruses use the protons as an energy source so they can move. Because they are needed for the clathrin coating to be formed around the endosome. Cell can’t communicate because they can’t talk.1 True False Which one of these could NOT be a type of influenza?1 H1H3 H2N2 H12N3 H5N7 Which of these is NOT a glycoprotein?1 the receptor on which sialic acid is found NA (neuraminidase) RNA HA (hemagglutinin Cells have identification tags.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. Can you remember which of these is a naked virus with no envelope?1 HIV polio influenza coronavirus Some enzymes act like scissors.1 True False Some viruses can stick to red blood cells.1 True False Which receptor does coronavirus attach to?1 ACE2 CD155 CD4 CAR REVIEW: Which cycle is the one where the virus hides for a long time inside the host’s genome?1 lysogenic lytic CD4 is found on T cells, which are important members of your immune system. Which virus attaches to CD4?1 Polio Influenza A HIV Adenovirus All viruses need to merge (fuse) with the host membrane.1 True False Which is true of a motor protein?1 It pulls endosomes through the cell. It travels along microtubule "highways" made of protein "cables." All of these. It uses ATP energy to "walk" along the microtubule. It is made of amino acids. Cell receptors where viruses bind were first discovered while Mrs. McHenry (the author) was a young adult.1 True False 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 pulls the endosome along a microtubule, toward the nucleus. It acts like a scissor and cuts the endosome from the membrane. 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 need low pH to cause shape changes that will allow it to get out of the endosome. Because viruses use the protons as an energy source so they can move. Because they are needed for the clathrin coating to be formed around the endosome. Cell can’t communicate because they can’t talk.1 True False Which one of these could NOT be a type of influenza?1 H1H3 H2N2 H12N3 H5N7 Which of these is NOT a glycoprotein?1 the receptor on which sialic acid is found NA (neuraminidase) RNA HA (hemagglutinin Cells have identification tags.1 True False
