Question

What are antibodies?

Options

• Protective chemicals produced in response to antigens

• Foreign substances that invade the body

• Barriers that prevent entry of harmful agents

• White blood cells that directly kill pathogens

Answer 1

Antibodies are protective chemicals produced by the immune system in response to antigens. These immunoglobulins bind to specific antigens to neutralize them, mark them for destruction, or prevent them from causing harm to the body.