VIRUSES lesson 5: How Viruses Enter Cells Quizellenjmchenry2020-06-04T18:28:08-04:00 Please sign up for the course before taking this quiz. Some enzymes act like scissors.1 True False Which of these is NOT a glycoprotein?1 the receptor on which sialic acid is found RNA HA (hemagglutinin NA (neuraminidase) Which one of these could NOT be a type of influenza?1 H1H3 H2N2 H5N7 H12N3 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 Adenovirus HIV Influenza A Which receptor does coronavirus attach to?1 ACE2 CAR CD155 CD4 Which is true of a motor protein?1 It travels along microtubule "highways" made of protein "cables." It uses ATP energy to "walk" along the microtubule. All of these. It is made of amino acids. It pulls endosomes through the cell. Cell receptors where viruses bind were first discovered while Mrs. McHenry (the author) was a young adult.1 True False Some viruses can stick to red blood cells.1 True False All viruses need to merge (fuse) with the host membrane.1 True False Why are the proton pumps so important in these lessons?1 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 virus to be able to attach to a binding site. 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 What does “clathrin coating” of an endosome do?1 It acts like a scaffold, helping the endosome to form. It acts like a scissor and cuts the endosome from the membrane. It pulls the endosome along a microtubule, toward the nucleus. It helps the virus to bind to the endosome membrane. Can you remember which of these is a naked virus with no envelope?1 HIV polio influenza coronavirus 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. Some enzymes act like scissors.1 True False Which of these is NOT a glycoprotein?1 the receptor on which sialic acid is found RNA HA (hemagglutinin NA (neuraminidase) Which one of these could NOT be a type of influenza?1 H1H3 H2N2 H5N7 H12N3 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 Adenovirus HIV Influenza A Which receptor does coronavirus attach to?1 ACE2 CAR CD155 CD4 Which is true of a motor protein?1 It travels along microtubule "highways" made of protein "cables." It uses ATP energy to "walk" along the microtubule. All of these. It is made of amino acids. It pulls endosomes through the cell. Cell receptors where viruses bind were first discovered while Mrs. McHenry (the author) was a young adult.1 True False Some viruses can stick to red blood cells.1 True False All viruses need to merge (fuse) with the host membrane.1 True False Why are the proton pumps so important in these lessons?1 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 virus to be able to attach to a binding site. 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 What does “clathrin coating” of an endosome do?1 It acts like a scaffold, helping the endosome to form. It acts like a scissor and cuts the endosome from the membrane. It pulls the endosome along a microtubule, toward the nucleus. It helps the virus to bind to the endosome membrane. Can you remember which of these is a naked virus with no envelope?1 HIV polio influenza coronavirus Cells have identification tags.1 True False
