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