1. Facilitated Diffusion Active Transport
Cell Transport
Passive Transport
Simple Diffusion
Osmosis
Facilitated Diffusion
Active Transport
Exocytosis
Endocytosis
Phagocytosis
Pinocytosis
Receptor-Mediated Endocytosis

2. Diffusion & Osmosis Osmosis: Diffusion of water
Diffusion: Movement of solute from an area of high concentration to low concentration
Osmosis: Diffusion of water

3. Osmosis: Movement of Water
Hypotonic Solution: low solute concentration
Isotonic Solution: equal concentration inside and outside the cell
Hypertonic Solution: high solute concentration
Water moves in the direction of higher concentration of solute

4. Osmosis in the Cell The effects of osmosis on the cell:
Hypertonic: water moves out of the cell; the cell shrivels
Isotonic: water moves equally in and out of the cell; no effect on cell size
Hypotonic: water moves inside the cell; the cell swells

5. Passive Transport Two types of passive transport-
Simple Diffusion: movement of molecules across the membrane from high to low concentration (down the concentration gradient)
Facilitated Diffusion: movement of molecules across the membrane from high to low concentration through a protein

6. Active Transport
Active Transport: movement of molecules from low to high concentration (against the concentration gradient) using ATP energy

7. Active Transport: Endocytosis & Exocytosis
Exocytosis: secretion of molecules outside the cell via a vesicle fusing to a membrane
Endocytosis: engulfing of molecules inside the cell via vesicle formation

8. Types of Endocytosis
Phagocytosis: endocytosis of solid particles Pinocytosis: endocytosis of fluid Receptor-mediated endocytosis: endocytosis of molecules via receptor proteins