1. Biology Unit V - Regulation
How do cells deal with substances that are too large to pass through the cell membrane?
Biology
Unit V - Regulation

2. Endocytosis Cells ingest large particles How Does This Happen?
These external materials are enclosed by a portion of the cell, which folds into itself and forms a pouch
The pouch pinches off from the cell membrane and becomes a membrane-bound organelle called a vesicle

3. Endocytosis

4. Exocytosis
Vesicles in the cytoplasm fuse with the cell membrane and release their contents into the cell’s external environment

5. Exocytosis

6. Endocytosis & Exocytosis