Question

what is the general role of an antibody?
a to find non - self substances and destroy them
b to bind to a specific antigen and target it for destruction
c to bind to foreign agents prior to phagocytosis
d to make cells impervious to foreign substances

Explanation:

Antibodies are proteins of the immune - system. They have a specific structure that allows them to recognize and bind to specific antigens (non - self substances). Once bound, they mark the antigen for destruction by other immune cells. Option a is incorrect as antibodies don't directly destroy non - self substances. Option c is a partial function. Option d is not the main role of antibodies.

Answer:

B. to bind to a specific antigen and target it for destruction