Which of the Following Statements About Type I Reactions Is

Question

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

Accepted Answer

Type I reactions do not exclusively involve helper T cells, as other types of T cells can also be involved. However, helper T cells are important in activating B cells to produce IgE antibodies, which play a key role in type I reactions.