Human defense against disease (P1C11) Flashcards
1
Q
What are the two ways white blood cells help defend the body?
A
- Phagocytosis
- Production of antibodies
2
Q
What is phagocytosis?
A
Phagocytosis is when white blood cells surround, engulf and digest a microorganism.
3
Q
What are antibodies?
A
Antibodies are special protein molecules that attach to specific antigens and cause the microorganism to clump with others for digestion.
4
Q
What are memory cells?
A
Memory cells are special white blood cells that have antibodies ready to be produced that were used to deal with a previous infection.
