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The Cell: An Overview Chapter 5. Cell Theory: Fundamental to Life  All organisms are cellular  Cell: the smallest unit of life  Cells come only from.

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Presentation on theme: "The Cell: An Overview Chapter 5. Cell Theory: Fundamental to Life  All organisms are cellular  Cell: the smallest unit of life  Cells come only from."— Presentation transcript:

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


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