Pathogen and Immunity Review

Front

What function do memory cells have in our body?

Back

They help our immune system remember pathogens.

Front

How do infectious diseases get transmitted?

Back

Infectious diseases can be transmitted through sneezing or coughing, contaminated drinking water, and contaminated objects.

Front

What happens when the body encounters a pathogen for the second time?

Back

The response will be faster due to the presence of antibodies.

Front

What is a pathogen?

Back

An organism or agent that causes disease.

Front

What is the body's first line of defence against infection?

Back

Physical barriers such as skin and mucous membranes.

Front

What are antibodies?

Back

Proteins produced by the immune system to identify and neutralize pathogens.

Front

What role do white blood cells play in immunity?

Back

They help to identify and destroy pathogens.

Front

What is the difference between active and passive immunity?

Back

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

Front

What is herd immunity?

Back

Herd immunity occurs when a large percentage of a population becomes immune to a disease, making its spread unlikely.

Front

What are vaccines?

Back

Vaccines are substances that stimulate the immune system to develop immunity to a specific disease.