Multiple Choice
Which choice below describes a function of white blood cells that helps them carry out defensive functions more effectively?
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41. Immune System
Immune System
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Which of the following best describes cell-mediated immunity?
A
It relies on antibodies produced by B cells to neutralize pathogens.
B
It is primarily responsible for producing memory cells after vaccination.
C
It is the first line of defense involving physical and chemical barriers.
D
It involves the activation of T cells to destroy infected or abnormal cells.
Verified step by step guidance1
Understand the concept of cell-mediated immunity: It is a type of immune response that does not involve antibodies but rather relies on the activation of T cells to target and destroy infected or abnormal cells.
Differentiate cell-mediated immunity from humoral immunity: Humoral immunity involves B cells and the production of antibodies to neutralize pathogens, whereas cell-mediated immunity focuses on T cells.
Recognize the role of T cells in cell-mediated immunity: T cells, specifically cytotoxic T cells (CD8+), directly attack infected or abnormal cells, while helper T cells (CD4+) assist in coordinating the immune response.
Eliminate incorrect options: Review each option provided in the problem and identify why they do not describe cell-mediated immunity. For example, antibodies and B cells are part of humoral immunity, not cell-mediated immunity.
Select the correct answer: Based on the understanding of cell-mediated immunity, choose the option that states 'It involves the activation of T cells to destroy infected or abnormal cells.'
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