Immune System

Front

What are antibodies?

Back

Special proteins produced by white blood cells to identify and neutralize pathogens.

Front

What is the body's first response to a pathogen?

Back

Blood is sent to the site of infection to help fight off the invading pathogens.

Front

What is the main function of white blood cells (WBCs)?

Back

They attack and destroy invading pathogens to protect the body.

Front

What is a pathogen?

Back

A micro-organism that causes disease, such as viruses, bacteria, fungi, and parasites.

Front

What are the four main types of pathogens?

Back

Viruses, bacteria, parasites, and fungi.

Front

How do vaccines help the immune system?

Back

Vaccines stimulate the immune system to produce antibodies without causing the disease.

Front

What role do T-cells play in the immune system?

Back

T-cells help identify and destroy infected cells and coordinate the immune response.

Front

What is the difference between active and passive immunity?

Back

Active immunity is developed through exposure to pathogens or vaccination, while passive immunity is acquired through antibodies from another source.

Front

What is an antigen?

Back

A substance that triggers an immune response, often found on the surface of pathogens.

Front

How do white blood cells recognize pathogens?

Back

They recognize specific antigens present on the surface of pathogens.