immune system Flashcards
page 81-90
1
Q
What is the main function of the immune system?
A
To protect the body from pathogens and foreign substances.
2
Q
Name two types of immunity.
A
Innate (non-specific) and adaptive (specific).
3
Q
What is the role of white blood cells in immunity?
A
They identify and attack pathogens or produce antibodies.
4
Q
What are antigens?
A
Substances that trigger an immune response.
5
Q
How do vaccines work?
A
They introduce a harmless form of a pathogen to stimulate an immune response and memory cell formation.
6
Q
What is the role of antibodies?
A
To neutralize pathogens and mark them for destruction.
7
Q
What is the difference between a T cell and a B cell?
A
T cells attack infected cells, while B cells produce antibodies.
