What is the role of antibodies produced by B cells?

The role of antibodies produced by B cells is primarily to neutralize or eliminate pathogens. Antibodies, also known as immunoglobulins, are specialized proteins that specifically recognize and bind to antigens, which are foreign substances such as bacteria, viruses, and toxins. Once bound to their target, antibodies can neutralize the pathogen's ability to infect or damage host cells.

Additionally, antibodies can facilitate the elimination of pathogens through various mechanisms. They can opsonize pathogens, marking them for destruction by phagocytes, or they can activate the complement system, leading to the lysis of the pathogen. Ultimately, the production of antibodies is a crucial aspect of the adaptive immune response, providing specificity and memory for future encounters with the same pathogen. In this way, antibodies play a vital role in defending the body against infections and contributing to overall immune protection.