Immune Cell Differentiation Quiz
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Questions and Answers

Where can rapidly dividing B cells and plasma cells be found?

  • Spleen
  • Lymphoid nodules
  • Tonsils
  • Lymph Nodes (correct)

    • Which organ holds many dendritic cells and macrophages and is known as the 'filter of the Blood'?

  • Lymph Nodes
  • Lymphoid nodules
  • Tonsils
  • Spleen (correct)

    • What is the function of mucosa-associated lymphoid tissue (MALT) in the human body?

  • Developing immunity to oral pathogens (correct)
  • Filtering blood
  • Transporting hormones
  • Aiding in digestion

    • What causes the swelling of tonsils?

    <p>An active immune response to infection</p> Signup and view all the answers

    Where are lymphoid nodules typically found in the human body?

    <p>Respiratory and digestive tracts</p> Signup and view all the answers

    Which vessels enter the lymph node?

    <p>Afferent lymphatic vessels</p> Signup and view all the answers

    What is the primary function of helper T cells?

    <p>Secrete cytokines to enhance other immune responses</p> Signup and view all the answers

    Which type of T cell is responsible for directly killing infected or cancerous cells?

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

    What is the primary function of B cells?

    <p>Recognize unprocessed antigens and secrete antibodies</p> Signup and view all the answers

    What is the role of IgA antibodies in the immune response?

    <p>IgA antibodies are found in exocrine secretions, such as breast milk, to provide mucosal immunity</p> Signup and view all the answers

    What is the key difference between active and passive immunity?

    <p>Active immunity leads to immunological memory, while passive immunity does not</p> Signup and view all the answers

    What is the primary function of regulatory T cells in the immune system?

    <p>Suppress other T cell immune responses</p> Signup and view all the answers

    What is the purpose of the negative selection process during T cell development in the thymus?

    <p>To eliminate T cells that might attack one's own body</p> Signup and view all the answers

    What is the primary mechanism by which cytotoxic T cells kill target cells?

    <p>Induce apoptosis in target cells</p> Signup and view all the answers

    What is the primary function of the clonal expansion process in the adaptive immune response?

    <p>To generate a strong response against a specific pathogen</p> Signup and view all the answers

    What is the purpose of the positive selection process during T cell development in the thymus?

    <p>To select for T cells that can bind to self-antigen MHC complexes</p> Signup and view all the answers

    What is the primary reason why an HIV vaccine has been difficult to develop?

    <p>HIV mutates rapidly, making it challenging to target with a vaccine.</p> Signup and view all the answers

    In a type 1 hypersensitivity reaction, what is the primary mechanism?

    <p>IgE antibodies bind to mast cells, causing degranulation and rapid symptoms.</p> Signup and view all the answers

    In autoimmune diseases, what is the primary mechanism?

    <p>The immune system attacks the body's own cells due to a breakdown in tolerance.</p> Signup and view all the answers

    Which of the following statements about organ transplantation is true?

    <p>Matching MHC alleles between donor and recipient is crucial for transplant success.</p> Signup and view all the answers

    What is the role of the immune system in cancer?

    <p>A healthy immune system can control some cancers, but cancer often evades it.</p> Signup and view all the answers

    Which of the following statements about autoimmune diseases is true?

    <p>Autoimmune diseases are less common in countries with high rates of infectious diseases.</p> Signup and view all the answers

    Why is an antibody ineffective against a virus inside a cell?

    <p>Antibodies cannot penetrate the cell membrane</p> Signup and view all the answers

    Which of the following is NOT a mechanism used by pathogens to evade the immune response?

    <p>Stimulating an overactive immune response</p> Signup and view all the answers

    What is the primary cause of the high mutation rate in influenza viruses?

    <p>The sloppy nature of their replication process</p> Signup and view all the answers

    Which of the following is an inherited immunodeficiency disorder?

    <p>Severe combined immunodeficiency disease (SCID)</p> Signup and view all the answers

    What was the treatment for the "boy in the bubble" who had SCID?

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

    What is seroconversion in the context of HIV/AIDS?

    <p>The development of antibodies against HIV</p> Signup and view all the answers

    Which of the following is true about B cells?

    <p>They develop in the red bone marrow and differentiate into plasma cells after binding an antigen</p> Signup and view all the answers

    What is the primary function of plasma cells?

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

    Where do T cells mature?

    <p>In the thymus gland</p> Signup and view all the answers

    Which of the following is NOT a secondary lymphoid organ?

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

    What is the primary function of Natural Killer (NK) cells?

    <p>Provide the innate immune response and first line of defense against viruses and some cancers</p> Signup and view all the answers

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