15 Questions
Who proposed the cellular theory of immunity through phagocytosis?
Elie Metchnikoff
Which scientist is associated with the discovery of the first report of a live 'attenuated' vaccine for rabies?
Louis Pasteur
Who demonstrated cutaneous (delayed-type) hypersensitivity?
Charles Richet
What type of immunity results from natural exposure to an infectious agent or administration of a vaccine?
Active immunity
Which phase reactants increase rapidly as a result of infection, injury, or trauma to the tissues?
Acute-phase reactants
What type of rejection occurs days to weeks after transplantation as a result of cellular mechanisms and antibody formation?
Acute rejection
What is the substance that is administered with an immunogen to enhance and potentiate the immune response called?
Adjuvant
Which process involves particulate antigens aggregating to form large complexes in the presence of a specific antibody?
Agglutination
What is the result of lack of agglutination in an agglutination inhibition test?
Positive test result
Which antibody is responsible for causing clumping or agglutination of cells?
Agglutinin
What is the means of activating complement proteins without an antigen-antibody combination called?
Alternative pathway
What is the definition of immunogen?
A substance that is capable of inducing an immune response
Which term describes the condition of being resistant to infection?
Immunity
What are immunoglobulins (Ig) and their role in the body?
Glycoproteins in the blood that are part of humoral immunity
What are Interferons (IFN) and their function in the immune system?
Cytokines produced to inhibit viral synthesis or act as immune regulators
Test your knowledge on immunodeficiency diseases characterized by decreased antibody levels in the blood, and the processes of agglutination and agglutination inhibition. Learn about positive test results and antigen-antibody reactions.
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