1. Membrane Transport

2. Diffusion With concentration gradient Movement of particles
Unequal distribution of particles
Movement of particles
From high
To Low

3. Osmosis Movement of water From high to low Across a selectively
permeable
membrane

4. Isotonic Solutions Iso- equal No change in concentrations
Water still moves
Same amount moves in as moves out
Both sides of membrane are the same

5. Dynamic Equilibrium Equal concentrations are reached
Not the same volumes
Continued movement across the membrane
Not gain or loss

6. Hypotonic Solution Hypo- under Out side of cell Water moves into cell
Less dissolved substance
More water
Water moves into cell

7. Hypertonic Solution Hyper- Over Out side of cell
More dissolved substance
Less water
Water moves out of cell

8. Osmosis

9. Passive Transport Cell uses no energy From high to low Plasma membrane
Concentration
gradient

10. Facilitated Diffusion
Type of passive transport
Use transport
proteins
Channel proteins
Carrier proteins
Changes shape
From high to low

11. Facilitated Diffusion

12. Active Transport Cell uses energy Against concentration gradient
From low to high
Carrier Proteins
Molecule binds with carrier protein
Energy then used to change shape
Molecule released on other side
Carrier protein returns to original shape

13. Active Transport

14. Large Particle Transport
Not through membrane
Requires energy
Exocytosis- out

15. Large Particle Transport
Endocytosis- in

16. Types of Endocytosis
Pinocytosis: liquid Phagocytosis: Solid