Which of the following statements about type I reactions is FALSE?
A) The symptoms are due to histamine.
B) They involve helper T cells.
C) Antibodies bind to mast cells and basophils.
D) The symptoms occur soon after exposure to an antigen.
E) They involve IgE antibodies.

Question

Quizplus · Accepted Answer

Type I reactions do not involve helper T cells. Instead, they involve activated T helper 2 cells, which stimulate B cells to produce IgE antibodies.

Which of the Following Statements About Type I Reactions Is