Multiple Choice
Which of the following cell types is responsible for suppressing the activity of T cells?
21. The Immune System
T Cells
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Cytotoxic T cells are responsible for which of the following responses?
A
Suppressing other T cells
B
Activating B cells
C
Killing other infected cells
D
Activating antigen presenting cells
Verified step by step guidance1
Understand the role of cytotoxic T cells (also known as CD8+ T cells) in the immune system. They are primarily involved in identifying and destroying infected cells, particularly those infected by viruses.
Recognize that cytotoxic T cells are distinct from other types of T cells, such as helper T cells (CD4+ T cells), which are involved in activating other immune cells like B cells and antigen-presenting cells.
Recall that cytotoxic T cells use mechanisms such as the release of perforin and granzymes to induce apoptosis in infected cells, effectively killing them.
Differentiate between the functions of cytotoxic T cells and regulatory T cells, the latter of which are involved in suppressing immune responses to maintain tolerance and prevent autoimmune reactions.
Conclude that the primary function of cytotoxic T cells is to kill infected cells, which aligns with the correct answer provided in the problem statement.
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