phagocytosis Flashcards
1
Q
what type of response is is?
A
non-specific
2
Q
what is a phagocyte?
what do they do?
A
- a type of white blood cell
- ingests and destroys pathogens
3
Q
1st stage : (2 points)
prompt: chemotaxis
A
a. microbe releases chemicals which attract the phagocyte
b. the phagocyte adheres to it
4
Q
2nd stage : (1 point)
A
microbe is engulfed
5
Q
3rd stage : (1 point)
A
a phagosome is formed
6
Q
4th stage : (2 points)
A
- lysosome fuses with phagosome
- to form a phagolysosome
7
Q
5th stage : (2 points)
A
- pathogen is hydrolysed by enzymes
- indigestible waste is removed
8
Q
what happens after phagocytosis?
A
the antigens of the pathogen are presented on its surface
9
Q
recall the prompts for phagocytosis
A
- chemotaxis
- engulfing
- phagosome
- phagolysosome
- hydrolysis of pathogen
