Recognition Of Own Cells Flashcards
1
Q
What do all cells have?
A
Specific molecules on their surface that identify them. These molecules can be various types. Proteins are the most varied and common marker
2
Q
Why do lymphocytes need to identify cells?
A
They must distinguish between the body’s own cells/molecules and foreign cells/molecules. If not the lymphocytes would destroy your own tissue
3
Q
What are antigens?
A
Molecules on the cell surface of pathogens that trigger the immune response
4
Q
Name the four types of antigens?
Antigens can be…
A
Glycoproteins
Polysaccharides
Lipids
Nucleic acid
5
Q
What do antigens allow the immune system to identify?
A
Pathogens
Non self material
Toxins (produced by pathogens)
Abnormal body cells (cancer)
