Which statement is True of antibody IgE?
A) IgE is mainly found in secretions such as tears and saliva.
B) IgE is passed from mother to fetus during pregnancy.
C) IgE is the most abundant antibody in blood plasma.
D) IgE can fix complement.
E) IgE is involved in allergies.

Question

Quizplus · Accepted Answer

IgE is involved in allergies, as it binds to allergens and triggers the release of histamine and other chemicals, causing allergic reactions. Option A is incorrect as IgE is mainly found on the surface of mast cells and basophils, not in secretions. Option B is incorrect as IgG is the antibody that is primarily passed from mother to fetus during pregnancy. Option C is incorrect as IgG is the most abundant antibody in blood plasma. Option D is incorrect as IgM and IgG are the antibodies that can fix complement.

Which Statement Is True of Antibody IgE