The function of the secretory component of the IgA molecule is
A)to protect IgA from being destroyed by proteolytic enzymes.
B)to coat the antigen.
C)opsonization.
D)to fix IgA to the antigen.

Question

Quizplus · Accepted Answer

The secretory component of the IgA molecule plays a crucial role in protecting IgA from proteolytic enzymes present in the digestive tract, thereby enhancing its stability and function. The secretory component acts like a shield that prevents the breakdown of the IgA molecule and ensures its effective transport across mucosal surfaces. Hence, option A is the correct answer.

The Function of the Secretory Component of the IgA Molecule