Lymphocytes respond to antigens that have been processed and presented to them by

Question

Quizplus · Accepted Answer

Lymphocytes, specifically T cells, require antigen presentation by antigen-presenting cells (APCs) in order to recognize and respond to a pathogen or foreign substance. APCs such as dendritic cells and macrophages process and present antigens to T cells, which then activate and differentiate into effector cells to mount an immune response. Neutrophils and eosinophils are not involved in antigen presentation, and interleukin 2 is a cytokine involved in T cell activation and proliferation, but not antigen presentation. Helper T cells also play a role in activating and coordinating immune responses, but they do not directly present antigens to lymphocytes.

Lymphocytes Respond to Antigens That Have Been Processed and Presented