Phagocytosis Flashcards
1
Q
Phagocytosis
A
When large particles are too big to cross membrane by diffusion they have to be ENGULFED by cells in the form of vesicles
2
Q
Step 1
A
Chemical products of pathogen attracts phagocyte causing it to move towards pathogen along conc gradient.
3
Q
Step 2
A
Phagocyte bonds to pathogen
4
Q
Step 3
A
They engulf the pathogen to form a vesicle, known as a phagosome
5
Q
Step 4
A
Lysosomes move towards phagosome and fuse with it
6
Q
Step 5
A
Lysosomes release lyric enzymes into phagosome to break down bacterium
7
Q
Step 6
A
Soluble products from the breakdown are absorbed by phagocyte
