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Bio 431 Lymphatic and Immunity Systems Exam Questions and Answers
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Bio 431 Lymphatic and Immunity Systems Exam Questions and Answers
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Bio 431 Lymphatic and ImmunitySystems Exam Questions and Answers
Two properties that distinguish adaptive immunity from innate immunity - Answer-
Specificity and memory
There are two major types of mature T cells that exit the thymus - Answer-Helper T cells
and Cytotoxic T cells
There are two types of adaptive immunity called? - Answer-Cell mediated immunity and
Antibody mediated immunity
Cell mediated immunity is particularly effective against: - Answer-1. Intracellular
pathogens
2. Some cancer cells
3. Foreign transplanted tissues
Antibody mediated immunity works mainly against __________ and is also called
____________? - Answer-Extracellular pathogens and Humoral immunity
Clonal selection is the process by which a lymphocyte does what? - Answer-Proliferates
and differentiates
Most antigens that enter an injured blood vessel are trapped in what organ? - Answer-
Spleen
Antigen Presenting cells (APC's) include: - Answer-Dendritic cells, macrophages, and B
cells
What are cytokines? What is an example of a cell that secretes cytokines? - Answer-
Small protein hormones that stimulate or inhibit many normal cellular functions;
lymphocytes
We have 5 classes of immunoglobulins: - Answer-IgG, IgA, IgM, IgE, IgD
The actions of antibodies include the following: - Answer-Neutralizing antigen and
immobilizing bacteria
The Complement system in immunity destroys microbes by causing? - Answer-
Phagocytosis, Cytolysis, Inflammation
C3 can be activated in three ways: - Answer-1. Classical pathway
2. Alternative pathway
3. Lectin Pathway
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