1. The Cell: An Overview Chapter 5

2. Cell Theory: Fundamental to Life  All organisms are cellular  Cell: the smallest unit of life  Cells come only from preexisting cells

3. Examples of Cells Fig. 5-2, p. 92

4. Animation: Overview of cells

5. Fig. 5-4a, p. 94 Bright field microscopy

6. Fig. 5-4b, p. 94 Dark field microscopy

7. Plasma Membrane Fig. 5-6, p. 95

8. Animation: Cell membranes

9. Plasma Membrane  Plasma membrane defines cytoplasm  Lipid bilayer and proteins  Hydrophobic Selective passage hydrophilic  Internal environment of cell different from external

10. Typical Plant Cell Fig. 5-9a, p. 100

11. Electron Micrograph Plant Cell Fig. 5-9b, p. 100

12. Microbodies Fig. 5-17, p. 107

13. Fig. 5-17, p. 107 (removable labels) Cytosol Large central vacuole Chloroplast

14. Cytoskeleton  Cytoskeleton Maintains shape and organization Interconnected protein fibers and tubes  Most prominent in animal cells Plants and fungi also use cell walls and central vacuole

15. Cytoskeleton Examples Fig. 5-18, p. 107

16. Cell Wall Structure Fig. 5-25, p. 112

17. Extracellular Matrix Fig. 5-27, p. 115

18. Video: Fluid mosaic model