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TEKS HS Biology - BIOL.4C Viruses

Quiz by Texas Education Agency

High School
Biology (2017)
Texas Essential Knowledge and Skills (TEKS)

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Measures 1 skill from
High School
Biology (2017)
Texas Essential Knowledge and Skills (TEKS)

BIOL.4c

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12 questions
Show answers
  • Q1
    A photograph of a virus is shown below. The projections on the surface of this virus allow the virus to -
    Question Image
    control a host cell's DNA
    signal other viruses to infect a host cell
    move inside a host cell
    attach to a host cell
    60s
    BIOL.4c
  • Q2
    Cold sores are caused by the herpes simplex virus type 1. A company that wants to develop antiviral drugs would ask a research immunologist to study -
    the mechanism used by the virus to infect cells
    how closely related the virus is to cold viruses
    the metabolism of the virus
    meiosis in the virus
    60s
    BIOL.4c
  • Q3
    A person infected with the human immunodeficiency virus (HIV) may not have any symptoms for a period of time. During this period the virus affects the body by doing which of the following?
    The virus damages immune cells while using their machinery to produce copies of itself.
    The virus produces toxins that weaken immune cells and prevent them from reproducing.
    The virus changes the identity of the nucleotides of immune cells to prevent the immune system from functioning normally.
    The virus uses nutrients meant for immune cells to fuel its own cellular respiration.
    60s
    BIOL.4c
  • Q4
    Severe acute respiratory syndrome (SARS) is an illness caused by a coronavirus. Symptoms including a high fever, headaches, and body aches typically occur two to seven days after infection by the virus. SARS is more serious in elderly patients. This information suggests that the reproductive cycle of the SARS virus is -
    lysogenic, because the virus is a coronavirus
    lysogenic, because the virus primarily affects older people
    lytic, because of the quick onset of symptoms after infection
    lytic, because the virus causes respiratory illness
    60s
    BIOL.4c
  • Q5
    Models of the human immunodeficiency virus (HIV) and an animal cell are shown below. What is the difference in the function of the glycoprotein structures of an HIV virion and the cilia of an animal cell?
    Question Image
    The glycoprotein structures are used to provide physical support for the viral envelope, and the cilia strengthen the cell membrane
    The glycoprotein structures are used for attachment, and the cilia are used to move fluids surrounding the cell
    The glycoprotein structures are used to obtain nutrition, and the cilia are used to secrete proteins
    The glycoprotein structures are used for defense, and the cilia are used for locomotion
    60s
    BIOL.4c
  • Q6
    H1N1 flu is a highly contagious viral infection caused by the influenza A (H1N1) virus. The symptoms of H1N1 flu are listed in the box below. An antiviral agent administered within 48 hours of the appearance of symptoms can reduce the severity of the illness. Why is it important to administer an antiviral agent to an infected person within 48 hours of the appearance of symptoms?
    Question Image
    The H1N1 virus replicates quickly
    The H1N1 virus is dormant in cells
    The H1N1 virus does not mutate
    The H1N1 virus is transmitted through a vector host, such as a mosquito
    60s
    BIOL.4c
  • Q7
    The 1918 influenza epidemic killed between 50 million and 100 million people worldwide. This epidemic happened near the end of World War I. More people died from the influenza epidemic than were killed in the war. Which of the following explains why this virus was so deadly worldwide?
    All of the above
    Food was scarce because of the war, so people were undernourished, and their immune systems were weakened
    Medical personnel often became ill as a result of exposure to airborne virus particles
    Infected soldiers returning from the war spread the virus when they coughed
    60s
    BIOL.4c
  • Q8
    The picture shows a 3-D model of a virus called a bacteriophage. Bacteriophages can infect bacteria such as E. coli. In what way are the bacteriophage and E. coli alike?
    Question Image
    They have identical genomes
    They contain antibodies
    They lack membrane-bound organelles
    They reproduce by mitosis
    60s
    BIOL.4c
  • Q9
    The human immunodeficiency virus (HIV) often infects and destroys CD4 T cells. These CD4 T cells are one of many kinds of white blood cells that are an important part of the immune system. The most common danger related to the destruction of CD4 T cells is -
    an increase in the threat of diseases caused by microorganisms and viruses
    an increase in the risk of high blood pressure
    a decrease in the flow of blood to vital organs
    a decrease in the amount of oxygen being transported to tissues
    60s
    BIOL.4c
  • Q10
    Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. Once a virus gains entry to the body, it invades a host cell in order to -
    deactivate the host cell's defenses
    synthesize antibodies for defense
    metabolize host proteins and grow
    access cellular processes for replication
    60s
    BIOL.4c
  • Q11
    In the 1880s, Louis Pasteur developed a method of weakening viruses. The weakened viruses could be injected into healthy individuals. How is this method effective in fighting viral diseases?
    The weakened viruses attach to unaffected viruses in the host and interrupt the viral reproductive cycle.
    The immune system develops antibodies in response to the weakened viruses.
    Weakened viruses are unable to enter the host organism.
    The rate of genetic mutation in the host is decreased due to the introduction of weakened viruses.
    60s
    BIOL.4c
  • Q12
    Which of these describes a difference between viruses and cells?
    Viruses have membranes made of proteins, and cells have membranes made of nucleic acid.
    Cells reproduce independently, and viruses require a host to reproduce.
    Viruses have flagella, and cells have only cilia.
    Cells contain protein, and viruses contain only carbohydrates.
    60s
    BIOL.4c

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