Small molecules attached to larger protein structures that elicit an immune response are referred to as:
A) antibodies.
B) globins.
C) allergens.
D) haptens.
E) hemes.

Question

Quizplus · Accepted Answer

Small molecules that can elicit an immune response only when attached to a larger carrier molecule are called haptens. Examples of haptens include penicillin and poison ivy. When haptens combine with proteins in the body, they form new molecules that are recognized by the immune system as foreign and trigger an immune response.

Small Molecules Attached to Larger Protein Structures That Elicit an Immune