1. MOVING MATERIALS INTO AND OUT OF CELLS

2. MATERIAL MOVEMENT
PASSIVE
TRANSPORT
ACTIVE
TRANSPORT

3. PASSIVE TRANSPORT
DIFFUSION
OSMOSIS

4. PASSIVE TRANSPORT PARTICLES PASSING THROUGH THE CELL MEMBRANE
WITHOUT USING ENERGY

5. DIFFUSION
MOVEMENT FROM AN AREA OF HIGHER CONCENTRATION TO AN AREA OF LOWER CONCENTRATION

6. DIFFUSION (CONTINUED)

7. DIFFUSION (CONTINUED)
WHAT IS THE SOLUTE?
WHAT IS THE SOLVENT?
WHAT IS THE SOLUTION?
WHAT IS EQUILIBRIUM?

8. OSMOSIS
MOVEMENT OF WATER ACROSS A MEMBRANE

9. OSMOSIS (CONTINUED)
RESULT OF OSMOSIS IS EXTRA MOLECULES COLLECT ON ONE SIDE OF THE MEMEBRANE
PRESSURE EXERTED BY WATER MOLECULES IS OSMOTIC PRESSURE

10. OSMOSIS (CONTINUED) HYPOTONIC SOLUTION
WATER CONCENTRATION HIGHER IN ENVIRONMENT THAN IN CELL
WATER WILL MOVE INTO THE CELL

11. OSMOSIS (CONTINUED) HYPERTONIC SOLUTION
WATER CONCENTRATION LOWER IN ENVIRONMENT THAN IN CELL
WATER WILL MOVE OUT OF THE CELL

12. OSMOSIS (CONTINUED) ISOTONIC SOLUTION
WATER CONCENTRATION SAME ON BOTH SIDES OF THE MEMBRANE
WATER MOLECULES WILL MOVE INTO THE CELL AT THE SAME RATE AS THEY MOVE OUT

13. OSMOSIS (CONTINUED) LYSED = BREAK TURGID = SWOLLEN FLACCID = NOT FIRM
SHRINK

14. FACILITATED DIFFUSION
MEMBRANE CONTROLS WHAT CROSSES
MEMBRANE IS REFERRED TO AS SELECTIVELY PERMEABLE

15. ACTIVE TRANSPORT

16. ACTIVE TRANSPORT ENERGY IS USED TO MOVE MATERIAL ACROSS THE MEMBRANE
USUALLY FROM AREA OF LESSER CONCENTRATION TO AREA OF GREAT CONCENTRATION

17. ACTIVE TRANSPORT (CONTINUED)
EXAMPLE: SODIUM-POTASSIUM PUMP
MOVEMENT GLUCOSE INTO CELL: TYPCIALLY, CONC WILL BE GREATER IN CELL

18. Na+ MOVED AGAINST CONCENTRATION GRADIENT

19. ENDOCYTOSIS MOVEMENT OF MATERIAL INTO THE CELL Phagocytosis
Pinocytosis
Receptor-Mediated
Endocytosis

20. EXOCYTOSIS MOVEMENT OF MATERIAL OUT OF THE CELL
General animation of endocytosis and exocytosis