Which of the Following is Not Part of Nonspecific Immunity

Question

Which of the following is not part of nonspecific immunity?
A) tears
B) plasma cells
C) phagocytic white blood cells
D) the mucous membranes of the respiratory tract

Accepted Answer

Plasma cells are part of the specific immune response, where they produce antibodies targeted to a specific pathogen. Nonspecific immunity includes physical barriers (such as mucous membranes), chemical barriers (such as tears), and cells that can engulf and destroy pathogens (such as phagocytic white blood cells).