What is Antibody? Definition, Meaning & Example
A protein produced by white blood cells that binds to and destroys pathogens.
TL;DR: A protein produced by white blood cells that binds to and destroys pathogens.
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Antibody: A protein produced by white blood cells that binds to and destroys pathogens.
Explanation
Antibodies are Y-shaped proteins produced by B lymphocytes in response to antigens. Each antibody recognizes a specific pathogen. Antibodies mark pathogens for destruction and also neutralize toxins. Vaccination works by stimulating antibody production before actual infection. Different antibodies target different diseases. The immune system produces millions of different antibodies.
Example
When vaccinated against measles, your body produces antibodies against the measles virus so that if you encounter the virus later, the antibodies quickly destroy it.
Frequently Asked Questions
Which cells produce antibodies?
B lymphocytes (B cells) in the immune system produce antibodies.
What is the function of antibodies?
Antibodies bind to pathogens to mark them for destruction and help neutralize toxins.
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