Agricultural Microbiology Quiz
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Questions and Answers

Which of the following is an example of adaptive immunity?

  • Platelets
  • Skin
  • Neutrophils
  • B cells (correct)
  • What is the function of dendritic cells in the immune system?

  • Phagocytosis
  • Destroy target cells
  • Stimulate development of adaptive immunity (correct)
  • Produce antibodies
  • Which cells are responsible for cell-mediated immunity?

  • Monocytes
  • Neutrophils
  • Eosinophils
  • T cells (correct)
  • What is the main function of natural killer cells?

    <p>Destroy target cells</p> Signup and view all the answers

    Which of the following is a characteristic of innate immunity?

    <p>Involves nonspecific responses to pathogens</p> Signup and view all the answers

    What is the role of eosinophils in the immune system?

    <p>Kill parasites</p> Signup and view all the answers

    Which cells are involved in phagocytosis?

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

    What is the main function of monocytes in the immune system?

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

    Which component of blood is responsible for transporting oxygen and carbon dioxide?

    <p>Red Blood Cells</p> Signup and view all the answers

    What is the main role of toll-like receptors (TLRs) in the immune system?

    <p>Recognize groups of pathogens</p> Signup and view all the answers

    Which part of the immune system is active immediately upon infection?

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

    What is the function of mucus membranes in the immune system?

    <p>Trap and move bacteria away from the body</p> Signup and view all the answers

    Which cells can carry out extracellular killing?

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

    What is the function of antibodies in the immune response?

    <p>Mark pathogens for destruction and/or phagocytosis</p> Signup and view all the answers

    What do B cells secrete in response to antigen binding?

    <p>Soluble form of the protein called an antibody or immunoglobulin (Ig)</p> Signup and view all the answers

    Which cells can distinguish normal from infected cells via membrane proteins?

    <p>Natural killer lymphocytes (NK cells)</p> Signup and view all the answers

    What is the main function of phagocytic cells?

    <p>Engulf and digest pathogens</p> Signup and view all the answers

    What is the role of antigens in the immune response?

    <p>Elicit a response from a B or T cell</p> Signup and view all the answers

    What is the primary function of neutrophil extracellular traps (NETs)?

    <p>Kill via immobilization of pathogens</p> Signup and view all the answers

    What distinguishes active immunity from passive immunity?

    <p>Active immunity develops naturally when memory cells form clones in response to an infection, while passive immunity is when antibodies are directly donated</p> Signup and view all the answers

    What is the function of opsonization in the immune response?

    <p>Mark pathogens for destruction and/or phagocytosis</p> Signup and view all the answers

    What is the purpose of vaccination?

    <p>To elicit an immune response and develop immunological memory</p> Signup and view all the answers

    What is the function of natural killer lymphocytes (NK cells) in the immune response?

    <p>To distinguish normal from infected cells via membrane proteins</p> Signup and view all the answers

    What is the role of mast cells in the immune response?

    <p>Release signaling molecules to initiate an inflammatory response</p> Signup and view all the answers

    Which of the following is true about adaptive immunity?

    <p>It develops after exposure to specific pathogens</p> Signup and view all the answers

    What is the main function of dendritic cells in the immune system?

    <p>Stimulate development of adaptive immunity</p> Signup and view all the answers

    What is the primary function of neutrophils in the immune system?

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

    What is the main role of toll-like receptors (TLRs) in the immune system?

    <p>Recognize groups of pathogens</p> Signup and view all the answers

    What is the function of opsonization in the immune response?

    <p>Enhance phagocytosis of pathogens</p> Signup and view all the answers

    What is the main function of natural killer cells in the immune response?

    <p>Destroy target cells</p> Signup and view all the answers

    What is the function of mucus membranes in the immune system?

    <p>Trap and move bacteria away from the body</p> Signup and view all the answers

    What distinguishes active immunity from passive immunity?

    <p>It is long-lasting and involves memory cells</p> Signup and view all the answers

    What do eosinophils primarily target in the immune system?

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

    What is the main function of monocytes in the immune system?

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

    What distinguishes innate immunity from adaptive immunity?

    <p>It is effective from the time of birth</p> Signup and view all the answers

    Which component of blood is responsible for transporting oxygen and carbon dioxide?

    <p>Red blood cells</p> Signup and view all the answers

    What is the function of neutrophil extracellular traps (NETs) in the immune response?

    <p>Immobilization and killing of pathogens</p> Signup and view all the answers

    Which of the following is an example of passive immunization?

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

    What is the primary function of natural killer lymphocytes (NK cells) in the immune response?

    <p>Inducing apoptosis in infected cells</p> Signup and view all the answers

    What distinguishes active immunity from passive immunity?

    <p>Active immunity involves the formation of memory cells, while passive immunity does not</p> Signup and view all the answers

    What is the main role of toll-like receptors (TLRs) in the immune system?

    <p>Recognition of pathogen-associated molecular patterns (PAMPs)</p> Signup and view all the answers

    Which cells can distinguish normal from infected cells via membrane proteins?

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

    What is the function of opsonization in the immune response?

    <p>Facilitating phagocytosis of pathogens</p> Signup and view all the answers

    What is the main function of monocytes in the immune system?

    <p>Differentiating into macrophages</p> Signup and view all the answers

    What is the main function of mast cells in the immune response?

    <p>Release of histamine and other inflammatory mediators</p> Signup and view all the answers

    What is the function of mucus membranes in the immune system?

    <p>Physical barrier against pathogens</p> Signup and view all the answers

    Which cells are involved in phagocytosis?

    <p>Macrophages and neutrophils</p> Signup and view all the answers

    What is the main function of dendritic cells in the immune system?

    <p>Antigen presentation to T cells</p> Signup and view all the answers

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