What is the function of IgG antibodies?
A) They play a role in the activation of B cells.
B) They attack pathogens before they enter the body tissues.
C) They are responsible for defense against many viruses, bacteria, and bacterial toxins.
D) They accelerate inflammation upon exposure to antigens.
E) They are responsible for cross reactions between incompatible blood types.

Question

Quizplus · Accepted Answer

IgG antibodies are responsible for defense against many viruses, bacteria, and bacterial toxins. They are the most abundant type of antibody in the bloodstream and can neutralize pathogens, activate complement system, and promote opsonization. They are also important in providing long-term immunity to diseases.

What Is the Function of IgG Antibodies