IgA Is Largely Responsible for Protection of the Respiratory and Intestinal

Multiple Choice

IgA is largely responsible for protection of the respiratory and intestinal mucosal tract. Effective protection is dependent on the action of a secretory piece which

A) Facilitates the passage of IgA out of the plasma cell
B) Facilitates the formation of the IgA dimer
C) Is released by IgA causing an inflammatory response
D) Is a poly Ig transport receptor on mucosal epithelial cells