Immune System Review

Front

What is an antibody?

Back

A protein produced by the immune system that specifically targets and neutralizes antigens (foreign substances such as pathogens).

Front

What is an infectious disease?

Back

A disease that is caused by pathogens and can be transmitted from one person to another.

Front

What are the four main types of pathogens?

Back

Bacteria, fungi, viruses, and parasites.

Front

True or False: The body can create antibodies for pathogens it has never encountered.

Back

False, because the body needs to encounter the pathogen at least once to produce specific antibodies.

Front

What is a vaccine?

Back

A weakened or inactive form of a pathogen that is introduced into the body to stimulate an immune response and build immunity.

Front

What is the role of the immune system?

Back

To protect the body from harmful pathogens and diseases by identifying and eliminating them.

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 the transfer of antibodies from another source, such as mother to child.

Front

What is a pathogen?

Back

Any microorganism that can cause disease, including bacteria, viruses, fungi, and parasites.

Front

What is the inflammatory response?

Back

A protective response by the immune system that involves increased blood flow and immune cell activity at the site of infection or injury.

Front

What is herd immunity?

Back

A form of indirect protection from infectious diseases that occurs when a large percentage of a population becomes immune, reducing the spread of the disease.