Question

what system
Produces antibodies

Answer 1

The system that produces antibodies is the **immune system**, specifically through a type of white blood cell called **B lymphocytes** (or B cells). When B cells encounter an antigen (a substance that the immune system recognizes as foreign, such as a pathogen), they can differentiate into plasma cells that secrete antibodies. These antibodies are proteins that can specifically bind to the antigens, marking them for destruction or neutralization and helping to protect the body from infections.