1. Fluid Mosaic Model

2. Phospholipid molecule

3. Passive Transport - requires NO cell energy

6. Passive Transport: molecules move from high to low between
(a) Simple Diffusion
molecules move from
high to low between
phospholipid molecules

7. (b) Facilitated diffusion
molecules move from high to low with the help of plasma proteins

8. Ion Channel
Ions have charges (positive or negative) and will not pass through the lipid bilayer which has a nonpolar interior.

9. Active Transport requires cell energy molecules move from low to high
molecules move against the gradient

10. a) Solute Pump

13. b) Bulk Transport (a) exocytosis

14. (b) endocytosis

15. Concept Map

16. Cell Cycle the repeating events in the life of a cell Includes:
1) Interphase
2) Mitosis
3) Cytokinesis

17. Interphase Normal cell activity (the time between
cell divisions)
Growth of cell (G phase)
At the end, DNA replicates

18. Mitosis

19. cytokinesis division of the cytoplasm animal cells form a
cleavage furrow