| Type of process | Example |
|---|
| Endocytosis | |
| Receptor-mediated endocytosis | Specific uptake of large molecules (e.g., LDL) |
| Pinocytosis | Nonspecific uptake of extracellular fluid (e.g., fluids and dissolved substances from blood) |
| Phagocytosis | Nonspecific uptake of large undissolved particles (e.g., invading bacteria by cells of the immune system) |
| Exocytosis | |
| Release of large molecules | Vesicle fusion with cell membrane (e.g., digestive enzymes in the pancreas) |
| Release of small molecules | Vesicle fusion with cell membrane (e.g., neurotransmitters at the synapse) |