Lecture 21C
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Questions and Answers

What distinguishes immunity from nonspecific resistance?

  • T cells and B cells
  • Active immunity and passive immunity
  • Antibodies and antigens
  • Specificity and memory (correct)

    • Which type of immunity involves T cells directly attacking foreign or diseased host cells?

  • Active immunity
  • Cellular (cell-mediated) immunity (correct)
  • Passive immunity
  • Humoral (antibody-mediated) immunity

    • How does humoral immunity differ from cellular immunity?

  • It is mediated by B cells and antibodies (correct)
  • It is a temporary response
  • It works against intracellular pathogens
  • It directly attacks pathogens

    • What distinguishes natural active immunity from artificial active immunity?

    <p>Source of exposure to pathogens</p> Signup and view all the answers

    Which class of immunity involves acquiring antibodies from another source temporarily?

    <p>Passive immunity</p> Signup and view all the answers

    What is the role of antigens in triggering an immune response?

    <p>They initiate the immune response</p> Signup and view all the answers

    Which type of immunity works against pathogens residing inside human cells?

    <p>Cellular (cell-mediated) immunity</p> Signup and view all the answers

    What is the main difference between natural passive immunity and artificial passive immunity?

    <p>The source of the acquired antibodies.</p> Signup and view all the answers

    In which form of immunity are antibodies already manufactured and do not induce antibody production in the recipient?

    <p>Artificial passive immunity.</p> Signup and view all the answers

    Which type of immunity involves antibodies that indirectly destroy a pathogen?

    <p>Humoral immunity</p> Signup and view all the answers

    What distinguishes cellular immunity from humoral immunity?

    <p>Cellular immunity works against extracellular pathogens, while humoral immunity works against intracellular pathogens.</p> Signup and view all the answers

    Which form of immunity is characterized by the production of antibodies by the body?

    <p>Active immunity</p> Signup and view all the answers

    What type of immunity can only work against extracellular stages of infectious microorganisms?

    <p>Humoral immunity</p> Signup and view all the answers

    Which characteristic distinguishes active immunity from passive immunity?

    <p>Duration of protection</p> Signup and view all the answers

    What is the main difference between natural active and artificial active immunity?

    <p>Pathogen exposure</p> Signup and view all the answers

    In which type of immunity do T cells directly attack and destroy foreign or diseased host cells?

    <p>Cellular immunity</p> Signup and view all the answers

    What is the main characteristic of antigens that trigger an immune response?

    <p>$10,000 amu molecular weight</p> Signup and view all the answers

    What is the function of cellular (cell-mediated) immunity?

    <p>Destroy foreign cells or diseased host cells directly</p> Signup and view all the answers

    Which type of immunity rids the body of pathogens residing inside human cells?

    <p>Cellular immunity</p> Signup and view all the answers

    What distinguishes active humoral immunity from passive humoral immunity?

    <p>Source of antibodies</p> Signup and view all the answers

    Which form of immunity involves introducing antibodies for treatment or prevention?

    <p>Artificial active immunity</p> Signup and view all the answers

    In which class of immunity does the body make its antibodies permanently?

    <p>Natural active immunity</p> Signup and view all the answers

    What type of immunity is mediated by antibodies that indirectly destroy pathogens?

    <p>Humoral immunity</p> Signup and view all the answers

    What characterizes antigens that trigger an immune response?

    <p><strong>Proteins</strong> with large molecular weights over 10,000 amu</p> Signup and view all the answers

    Antibodies that are already made and do not induce further antibody production in the recipient are associated with which type of immunity?

    <p><strong>Artificial passive immunity</strong></p> Signup and view all the answers

    What distinguishes cellular (cell-mediated) immunity from humoral (antibody-mediated) immunity?

    <p>Cellular immunity involves T cells directly attacking pathogens, while humoral immunity involves B cells producing antibodies.</p> Signup and view all the answers

    Which type of immunity rids the body of pathogens residing inside human cells?

    <p>Cellular immunity</p> Signup and view all the answers

    What characterizes antigens that trigger an immune response?

    <p>Large molecular weights of over 10,000 amu</p> Signup and view all the answers

    Which form of immunity involves acquiring antibodies from another source temporarily?

    <p>Natural passive immunity</p> Signup and view all the answers

    What distinguishes active humoral immunity from passive humoral immunity?

    <p>Active humoral immunity involves the body making its own antibodies permanently, while passive humoral immunity acquires antibodies from another source temporarily.</p> Signup and view all the answers

    Which class of immunity involves introducing antibodies for treatment or prevention?

    <p>Artificial passive immunity</p> Signup and view all the answers

    What is the main characteristic of antigens that trigger an immune response?

    <p>They have large molecular weights</p> Signup and view all the answers

    'Antibodies that are already made and do not induce further antibody production in the recipient are associated with which type of immunity?'

    <p>'Natural passive immunity'</p> Signup and view all the answers

    What distinguishes cellular (cell-mediated) immunity from humoral (antibody-mediated) immunity?

    <p>The ability to work against pathogens residing inside human cells in cellular immunity but not in humoral immunity</p> Signup and view all the answers

    What characteristic distinguishes natural active immunity from artificial active immunity?

    <p>The method of acquiring antibodies</p> Signup and view all the answers

    Which type of immunity is mediated by antibodies that indirectly destroy pathogens?

    <p>Humoral immunity</p> Signup and view all the answers

    What is the main characteristic of antigens that trigger an immune response?

    <p>Protein molecules</p> Signup and view all the answers

    Which form of immunity involves acquiring antibodies from another source temporarily?

    <p>Artificial passive immunity</p> Signup and view all the answers

    What distinguishes natural passive immunity from artificial passive immunity?

    <p>The method of antibody acquisition</p> Signup and view all the answers

    What distinguishes cellular (cell-mediated) immunity from humoral (antibody-mediated) immunity?

    <p>The ability to work against extracellular pathogens in cellular immunity but not in humoral immunity</p> Signup and view all the answers

    Which type of immunity can only work against extracellular stages of infectious microorganisms?

    <p>Humoral (antibody-mediated) immunity</p> Signup and view all the answers

    Cellular (cell-mediated) immunity involves T cells directly attacking and destroying ______ cells

    <p>foreign</p> Signup and view all the answers

    Humoral (antibody-mediated) immunity is mediated by antibodies that indirectly destroy a ______

    <p>pathogen</p> Signup and view all the answers

    Active humoral immunity is characterized by the body making its own antibodies ______

    <p>permanently</p> Signup and view all the answers

    Passive humoral immunity involves acquiring antibodies from ______ source

    <p>another</p> Signup and view all the answers

    Antigen is any molecule that triggers an immune ______

    <p>response</p> Signup and view all the answers

    Natural active immunity involves exposure to a ______

    <p>pathogen</p> Signup and view all the answers

    Artificial passive immunity involves introducing antibodies for ______

    <p>treatment/prevention</p> Signup and view all the answers

    In cellular (cell-mediated) immunity, T cells attack pathogens residing inside ______ cells

    <p>human</p> Signup and view all the answers

    Memory in immunity refers to the body reacting quickly upon re-exposure to the same ______

    <p>pathogen</p> Signup and view all the answers

    _______ immunity is characterized by T cells directly attacking and destroying foreign or diseased host cells

    <p>Cellular</p> Signup and view all the answers

    Humoral (antibody-mediated) immunity is mediated by antibodies that indirectly destroy a _______

    <p>pathogen</p> Signup and view all the answers

    _______ immunity involves acquiring antibodies from another source temporarily

    <p>Passive</p> Signup and view all the answers

    _______ immunity involves introducing antibodies for treatment or prevention

    <p>Artificial</p> Signup and view all the answers

    _______ immunity involves exposure to a pathogen

    <p>Natural</p> Signup and view all the answers

    _______ immunity is characterized by the body making its own antibodies forever

    <p>Active</p> Signup and view all the answers

    Antigen is any molecule that triggers an immune _______

    <p>response</p> Signup and view all the answers

    _______ immunity involves T cells directly attacking and destroying foreign cells or diseased host cells

    <p>Cellular</p> Signup and view all the answers

    _______ immunity is directed against a particular pathogen

    <p>Specificity</p> Signup and view all the answers

    Cellular immunity involves B cells attacking and destroying foreign cells or diseased host cells.

    <p>False</p> Signup and view all the answers

    Humoral immunity can work against pathogens residing inside human cells.

    <p>False</p> Signup and view all the answers

    Passive humoral immunity involves acquiring antibodies from another source temporarily.

    <p>True</p> Signup and view all the answers

    Artificial active immunity involves exposure to a pathogen.

    <p>False</p> Signup and view all the answers

    Antigens are large molecular weights of over 10,000 amu.

    <p>True</p> Signup and view all the answers

    Natural passive immunity involves acquiring antibodies that are already made and do not induce further antibody production in the recipient.

    <p>True</p> Signup and view all the answers

    Active humoral immunity is characterized by the body acquiring antibodies forever.

    <p>False</p> Signup and view all the answers

    The main function of cellular (cell-mediated) immunity is mediated by antibodies that indirectly destroy pathogens.

    <p>False</p> Signup and view all the answers

    Natural active immunity involves introducing antibodies for treatment or prevention.

    <p>False</p> Signup and view all the answers

    Cellular immunity is primarily mediated by B cells.

    <p>False</p> Signup and view all the answers

    Humoral immunity can work against pathogens residing inside human cells.

    <p>False</p> Signup and view all the answers

    Artificial active immunity involves exposure to a pathogen.

    <p>False</p> Signup and view all the answers

    Natural passive immunity involves acquiring antibodies from someone else.

    <p>True</p> Signup and view all the answers

    Antigens with large molecular weights of over 10,000 amu can trigger an immune response.

    <p>True</p> Signup and view all the answers

    Active humoral immunity involves the body making its own antibodies forever.

    <p>True</p> Signup and view all the answers

    Passive humoral immunity involves antibodies that are already made and do not induce further antibody production in the recipient.

    <p>True</p> Signup and view all the answers

    Memory in immunity refers to the body reacting slowly upon re-exposure to the same pathogen.

    <p>False</p> Signup and view all the answers

    Natural active immunity involves exposure to a pathogen.

    <p>True</p> Signup and view all the answers

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