Asked by Angelique Roberts on May 12, 2024
Verified
Which of the following is not an example of interaction between cell mediated immunity and innate immunity?
A) Macrophage of innate immunity present antigens to helper T cells.
B) Cytokines secreted by helper T cells stimulate inflammation.
C) Cytokines secreted by helper T cells stimulate phagocytosis.
D) Macrophages of innate immunity present antigens to cytotoxic T cells.
Innate Immunity
The body's first line of defense against infection that includes physical barriers, immune cells, and proteins, responding to pathogens in a generic way.
Helper T Cells
A type of T cell that plays a critical role in the immune response by activating and directing other immune cells.
Phagocytosis
The process by which cells, particularly immune cells, engulf and digest large particles or microorganisms.
- Discriminate between immunity triggered by antibodies and that activated by cells.
- Understand the significance and mechanism of antigen presentation and the subsequent immune response.
Verified Answer
MF
Madison FazioMay 18, 2024
Final Answer :
D
Explanation :
Macrophages primarily present antigens to helper T cells (CD4+ T cells) rather than cytotoxic T cells (CD8+ T cells). Helper T cells then assist in activating cytotoxic T cells indirectly through various mechanisms, including the secretion of cytokines. Direct presentation of antigens to cytotoxic T cells is not typically a function of macrophages in the context of innate and cell-mediated immunity interaction.
Learning Objectives
- Discriminate between immunity triggered by antibodies and that activated by cells.
- Understand the significance and mechanism of antigen presentation and the subsequent immune response.