TOPIC 2- Antigens Flashcards
1
Q
What is an antigen?
A
Molecules (usually proteins) that can generate an immune response when detected in the body
2
Q
Where are antigens usually found?
A
On the surface of cells
3
Q
What are foreign antigens?
A
Antigens that aren’t normally found in the body
4
Q
What do antigens allow the immune system to identify?
A
-Pathogens
-Abnormal body cells
-Toxins
-Cells from other individuals of the same species
5
Q
What are pathogens?
A
Organisms that cause disease
