The role of antibodies in the immune response is to identify and neutralize foreign pathogens such as bacteria, viruses, and toxins. Produced by B cells, antibodies bind specifically to antigens (foreign substances), marking them for destruction by other immune cells or neutralizing their harmful effects. This targeted approach is crucial for the adaptive immune system, providing long-lasting protection through memory cells that recognize previously encountered pathogens. Overall, antibodies play a key role in maintaining the body’s defense against infectious diseases.