Agricultural Microbiology Lectures
19 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following is true about adaptive immunity?

  • It involves nonspecific responses to pathogens
  • It is present before any exposure to pathogens
  • It consists of external barriers plus internal cellular and chemical defenses
  • It develops after exposure to specific pathogens (correct)

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

  • Stimulate development of adaptive immunity (correct)
  • Engulf and destroy pathogens
  • Produce antibodies
  • Kill parasites

    • Which blood cells are responsible for cell-mediated immunity?

  • Eosinophils
  • Neutrophils
  • T cells (correct)
  • Macrophages

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

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

    Which type of immunity involves defenses against any pathogen?

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

    What do Toll-like receptors (TLRs) on phagocytic cells do in the immune system?

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

    What is the function of eosinophils in the immune system?

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

    Which blood cells are responsible for phagocytosis in the immune system?

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

    What are the primary targets of neutrophils in the immune system?

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

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

    <p>Blood clotting</p> Signup and view all the answers

    What is innate immunity effective from?

    <p>The time of birth</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 is the role of antigens in eliciting an immune response?

    <p>They elicit a response from B or T cells</p> Signup and view all the answers

    Which cells mature in the thymus above the heart?

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

    What is the main function of natural killer lymphocytes (NK cells)?

    <p>Secrete toxin onto surface of viral infected cells</p> Signup and view all the answers

    What is phagocytosis?

    <p>The process by which phagocytic cells engulf and digest pathogens or debris</p> Signup and view all the answers

    What do vaccines do?

    <p>Stimulate the immune system to mount defenses against harmful pathogens</p> Signup and view all the answers

    What is active immunity?

    <p>The development of immunity when memory cells form clones in response to an infection or immunization</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser