Diseases and immunity Definitions Flashcards
1
Q
Pathogen
A
a disease-causing organism
2
Q
Transmissible disease
A
a disease in which the pathogen can be passed from one host to another
3
Q
Active immunity
A
a defence against a pathogen by antibody production in the body
4
Q
Antibody
A
proteins that bind to antigens leading to direct destruction of pathogens or the marking of pathogens for destruction by phagocytes
5
Q
Passive immunity
A
a short-term defence against a pathogen by antibodies acquired from another individual, including across the placenta and breast milk
6
Q
Cholera
A
a disease caused by a bacterium which is transmitted in contaminated water
7
Q
Microbe
A
a microscopic organism
8
Q
Antigen
A
a unique chemical present on the surface of a cell that introduces an immune response
