All of the following statements are true with regard to antibody molecules EXCEPT
A) Fc combines with determinant sites on antigens.
B) Fc is part of the heavy chain.
C) Fc contains carbohydrate.
D) Fc determines physical/chemical characteristics of antibodies.
E) Fc usually reacts with complement.

Question

Quizplus · Accepted Answer

The Fc (Fragment crystallizable) region of an antibody does not combine with determinant sites on antigens. Instead, it is the Fab (Fragment antigen-binding) region of the antibody that binds to antigens. The Fc region is involved in interactions with cell surface receptors and the complement system, influencing the antibody's effector functions.

All of the Following Statements Are True with Regard to Antibody