Textbook Question
Which antibody class is abundant in body secretions?
a. IgA
b. IgD
c. IgE
d. IgG
e. IgM
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21. The Immune System
Introduction to Adaptive Immunity
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Cytotoxic T cells are primarily involved in ____________.
A
Innate Immunity.
B
Antibody production.
C
Cell-mediated Immunity.
D
Humoral Immunity.
Verified step by step guidance1
Understand the role of cytotoxic T cells in the immune system. They are a type of T lymphocyte that directly kills infected cells, cancer cells, and sometimes transplanted cells.
Differentiate between the types of immunity: Innate immunity is the body's first line of defense and is non-specific. Humoral immunity involves B cells and the production of antibodies. Cell-mediated immunity involves T cells, including cytotoxic T cells.
Recognize that cytotoxic T cells are part of the adaptive immune system, specifically involved in cell-mediated immunity, which does not involve antibodies but rather the direct destruction of infected or abnormal cells.
Recall that cell-mediated immunity is crucial for targeting and eliminating cells that have been infected by viruses or have become cancerous, which is the primary function of cytotoxic T cells.
Conclude that the correct answer is 'Cell-mediated Immunity' as it directly involves the action of cytotoxic T cells in targeting and destroying infected or abnormal cells.
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