IgE molecules attach to
A) mast cells via their variable region
B) mast cells by their constant region
C) T helper cells by their variable region
D) plasma cells by their constant region

Question

Quizplus · Accepted Answer

IgE molecules attach to mast cells via their constant region. Specifically, the Fc region of the IgE antibody binds to Fc receptors on the surface of mast cells. This binding triggers the mast cells to release inflammatory molecules such as histamine, which can cause allergic symptoms.

IgE Molecules Attach to