Antigens are substances that trigger the production of antibodies by the immune system, in response to the presence of foreign or harmful substances in the body. These can include bacteria, viruses, toxins, or other pathogens. The antibodies produced by the body then target and neutralize these antigens, helping to fight off infections and protect the body from disease.

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What Are Antigens

Question 39

Multiple Choice

What are antigens?

A) Substances in the blood that fight to kill foreign bodies
B) Substances in the blood that attack the body's tissues to stop inflammation
C) Substances in the blood that trigger the production of antibodies.
D) Substances in the blood that protect tissues from self-destruction

Correct Answer: