Author: Freesciencelessons via YouTube
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In this video, we look at antigens and antibodies. First we explore what is meant by the specific immune system. We then explore the features of antigens and the difference between "self" antigens and foreign or "non-self" antigens. Finally, we look at the structure of antibodies and the roles of antibodies including agglutination.

Image credits:

B lymphocyte
https://commons.wikimedia.org/wiki/File:Human_B_Lymphocyte_(28942386960).jpg
NIAID, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons

T lymphocyte
https://commons.wikimedia.org/wiki/File:Healthy_Human_T_Cell.jpg
NIAID/NIH, Public domain, via Wikimedia Commons

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