Pathogens and Human Diseases
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Questions and Answers

Which section of the course provides an overview of the immune system?

  • Section 4
  • Section 1 (correct)
  • Section 2
  • Section 3

    • What is the study of the systems and mechanisms an organism uses to protect itself called?

  • Biotechnology
  • Immunology (correct)
  • Microbiology
  • Genetics

    • Which of the following is NOT a tissue of the immune system?

  • Lungs (correct)
  • Thymus
  • Bone marrow
  • Spleen

    • What are the genes that code for the different components of the immune system called?

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

    Which type of immune cell is NOT mentioned in the text?

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

    Which tissue is considered the primary immune tissue?

    <p>Bone marrow</p> Signup and view all the answers

    Where do T-cells differentiate or mature?

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

    Which organ in the lymph system acts as a blood filter?

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

    What is the function of lymph nodes?

    <p>To activate B-cells</p> Signup and view all the answers

    Which immune system is always active and attacks all invaders in the same way?

    <p>Non-specific immune system</p> Signup and view all the answers

    Which of the following is the correct definition of immunology?

    <p>The study of the immune system and its mechanisms</p> Signup and view all the answers

    Which of the following is NOT a tissue of the immune system?

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

    What is the key function of the immune system?

    <p>To protect from both nonself and self-agents</p> Signup and view all the answers

    What is a pathogen?

    <p>A non-self agent capable of causing disease</p> Signup and view all the answers

    Which of the following is a communicable disease?

    <p>Pathogenic disease</p> Signup and view all the answers

    Which type of cell plays a key role in the memory aspect of immunology?

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

    What is the role of B-cells in the immune system?

    <p>Secrete antibodies</p> Signup and view all the answers

    What is the main function of helper T-cells?

    <p>Create signaling molecules</p> Signup and view all the answers

    What do killer T-cells specifically target?

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

    What is the difference between the non-specific and specific immune system?

    <p>Non-specific immune system is innate, specific immune system evolves</p> Signup and view all the answers

    Which type of immune cell is the most abundant in the bloodstream and is responsible for engulfing pathogens?

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

    Where are macrophages usually found in the body?

    <p>In the tissues</p> Signup and view all the answers

    What is the role of eosinophils in the immune system?

    <p>To secrete cytotoxins that kill pathogens</p> Signup and view all the answers

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

    <p>To present pathogen pieces to T-cells</p> Signup and view all the answers

    What are hematopoietic stem cells responsible for?

    <p>Becoming mature immune cells</p> Signup and view all the answers

    Which type of pathogen is a single-celled organism without a nucleus?

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

    Which type of pathogen reproduces by taking over living cells?

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

    Which type of pathogen is a simple organism that grows as single cells or thread-like filaments?

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

    Which type of pathogen lives in or on another organism and derives nutrients at the host’s expense?

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

    Which branch of the immune system is also known as the innate immune system?

    <p>Non-specific</p> Signup and view all the answers

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