Antibody
Definition
An antibody is a protein produced by the immune system that recognizes and binds to specific antigens, such as pathogens or foreign substances. They play a crucial role in identifying and neutralizing harmful agents in the body.
5 Must Know Facts For Your Next Test
- Antibodies are produced by B cells, a type of white blood cell.
- There are five main classes of antibodies: IgA, IgD, IgE, IgG, and IgM.
- Each antibody has a unique binding site that matches a specific antigen.
- The process of antibody production is part of the adaptive immune response, which provides long-term immunity.
- Antibodies can neutralize pathogens directly or mark them for destruction by other immune cells.
Review Questions
- What type of cell produces antibodies?
- Name the five main classes of antibodies.
- How do antibodies neutralize pathogens?
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Related terms
Antigen: A substance that induces an immune response, typically recognized as foreign by the body.
B Cell: A type of white blood cell responsible for producing antibodies.
Adaptive Immunity: The part of the immune system that adapts its response to specific pathogens for long-lasting protection.
