Question

Dendritic cells function as a link between the innate and adaptive immune systems. Which class of cells activate naive T cells?

1) B cells
2) Macrophages
3) Dendritic cells
4) Effector T cells

Answer 1

Dendritic cells activate naive T cells by presenting antigens on their surface with MHC II molecules.

Step-by-step explanation:

Dendritic cells function as a link between the innate and adaptive immune systems and play a crucial role in activating naive T cells. When dendritic cells encounter pathogens, they phagocytose the pathogens and process the antigens. These antigens are then presented on the surface of dendritic cells with MHC II molecules. Naive T cells recognize these antigens and bind to them, which activates the T cells and initiates an immune response.