試題詳解

2. Why helper T cells play a central role in the immune response?
(A) Helper T cells are the only immune cell type that can produce immunological memory
(B) Helper T cells can be activated through innate immune response by antigen-presenting cells such as macrophages and dentritic cells, setting stage for the adaptive immune response
(C) Activated helper T cells release perforin that make pores in the target cell's membrane and enzymes promoting apoptosis leading to cell death
(D) Activated helper 'T cells can produce antibodies