Frequently, several different signals or molecules are needed in order to produce an immune response by a B cell or T cell. The second signal in this process is called ________.
A) opsonization
B) copresentation
C) complement activation
D) antigen processing
E) costimulation

Question

Quizplus · Accepted Answer

The second signal required for the activation of B cells or T cells in the immune response is known as costimulation. This is a crucial step for ensuring that the immune response is appropriately regulated and only targets specific antigens.

Frequently, Several Different Signals or Molecules Are Needed in Order