TRANSPORT ACROSS CELL MEMBRANE
ENDOCYTOSIS AND EXOCYTOSIS (ACTIVE TRANSPORT, CONT.)
- ENDOCYTOSIS: using a vesicle; infolding of membrane to form vesicles around materials, requires ATP energy, larger molecules entering/exiting cells
- Phagocytosis: cell eating, engulfment of solid material
- Pinocytosis: cell drinking, engulfment of liquids
- EXOCYTOSIS: release of vesicle contents outside of cell by fusion of vesicle and membrane [opposite process of endocytosis], ATP energy
Here is a helpful video to provide visual of the processes:
http://www.youtube.com/watch?v=DuDmvlbpjHQ
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