Final answer:
IgA is the serum globulin that can lead to the destruction of lung tissue by protease.
Step-by-step explanation:
The lack of a serum globulin that can lead to the destruction of lung tissue by protease is called IgA.
IgA is an antibody found in various secretions of the body, including saliva, tears, breast milk, and mucus. It plays a critical role in protecting the mucous membranes of the respiratory, gastrointestinal, and genitourinary tracts from infections. Individuals with selective IgA deficiency are more susceptible to lung and gastrointestinal infections because they cannot produce enough secretory IgA.