A Foreign Molecule That Causes a Specific Immune Response Is

Question

A foreign molecule that causes a specific immune response is a(n)________.
A)PAMP
B)marker
C)hapten
D)antibody
E)antigen

Accepted Answer

A foreign molecule that triggers a specific immune response is called an antigen. PAMPs (pathogen-associated molecular patterns) are molecules found on the surface of pathogens that the immune system recognizes as foreign. Markers are molecules that identify cells as belonging to a certain individual or species. Haptens are small molecules that cannot elicit an immune response on their own but can do so when coupled with a larger carrier molecule. Antibodies are proteins produced by the immune system in response to an antigen.