Antibodies have complementary surface markers that work with like a lock and key.
A) antigens
B) T cells
C) cytokines
D) histamines

Question

Quizplus · Accepted Answer

Antibodies have complementary surface markers, also called antigen receptors, that specifically bind to foreign molecules called antigens. This lock and key mechanism is what allows antibodies to identify and neutralize potential threats to the body.

Antibodies Have Complementary Surface Markers That Work with Like a Lock