1
Q
lysosomes - structure
A
- small temporary vacuoles
- surrounded by a single membrane
- formed by being pinched off from the golgi body
2
Q
lysosomes - function - phagocytosis
A
- foreign substance packaged into vesicle
- lysosomes fuse with membrane of
vesicle - releases digestive enzymes into vesicle
- content of vesicle digested
- useful material absorbed to cytoplasm
- excess released through exocytosis
3
Q
lysosomes - function - autophagy
A
- organelle at end of it’s life is packaged into a vesicle
- lysosome fuses with membrane of
vesicle - digestion enzymes released to vesicle
- organelles digested by the enzymes
- leaves the cell through exocytosis
4
Q
lysosomes - function - exocytosis
A
- membrane of a vesicle fuses with
membrane of the cell - content of vesicle is released outside the cell
