Antigens and Antibodies

Antigens are substances that trigger the body to fight them.

Antigens are usually made of proteins.

Yes, nonliving substances such as toxins, chemicals, drugs, and foreign particles can also be antigens.

<p>Antibodies are Y-shaped proteins made by the immune system's B-cells when it detects antigens.</p> Signup and view all the answers

<p>Antibodies help fight infections by locking onto their specific antigens and tagging them for attack by other immune cells.</p> Signup and view all the answers