What is the main function of antibodies in the body?

Antibodies serve a crucial role in the immune system, primarily functioning to fight infection. They are specialized proteins produced by the immune system in response to foreign invaders such as bacteria, viruses, and toxins. When these pathogens enter the body, antibodies identify and bind to them, marking them for destruction by other immune cells or neutralizing their harmful effects.

The structure of antibodies allows them to specifically recognize and attach to unique molecules called antigens found on the surface of pathogens. This action helps to neutralize the threat and facilitates the immune system's ability to eliminate the invading microorganisms. By doing so, antibodies play a fundamental part in the body’s defense mechanisms, helping to prevent illnesses and promote recovery during infections.

Understanding the distinct functions of molecules in the body, such as those that provide structure, store energy, or transport oxygen, highlights the specialized role of antibodies in maintaining health and immunity.