1. Cellular Structure Chapter 4

2. Prokaryote vs. Eukaryote Eubacteria Archaea Eukarya

3. Kingdoms vs. Domains Eubacteria Archaea Eukarya Animalia Fungi Plantae Protista Monera (defunct)

4. Bacterial Shapes Coccus (Sphere)Bacillus (Rod) Spiral

5. Glycocalyx

6. Flagella

7. Fimbriae and Pilli

8. Cell Wall

9. Peptidogylcan

10. Gram Positive vs. Gram Negative

13. Topics for Today Flagellum Ribosomes Nucleus (form and function) Membrane System and Cycling Cytoskeleton Mitochondria and Plastid Organelles Endosymbiotic Theory Copyright 2009, John Ireland

14. Flagella Copyright 2009, John Ireland

15. Ribosomes Copyright 2009, John Ireland Public Domain - PDB

16. Nucleus Copyright 2009, John Ireland Cell Nuclei in HeLa Cells Public Domain Image-Wikipedia

17. Role of Nucleus Contains the DNA of the Cell Controls access to the DNA Regulates use of DNA Regulates division of DNA Copyright 2009, John Ireland

18. Fine Structure of Nucleus Copyright 2009, John Ireland Wikimedia Commons

19. Endomembrane System Copyright 2009, John Ireland Wikimedia Commons

20. Cytoskeleton Adds structure to the interior of eukaryotes. Moves organelles and materials through the cell Composed of Multiple Protein types Copyright 2009, John Ireland

21. Cytoskeleton Copyright 2009, John Ireland Wikimedia Commons

22. Mitochondria Allow the use of oxygen in metabolism Found in almost all Eukaryotes Contain a circular piece of DNA Contain Ribosomes Divide by Binary Fission Copyright 2009, John Ireland

23. Mitochondria Copyright 2009, John Ireland

24. Chloroplasts Example of a Plastid Organelle Found in almost all Photosynthetic Eukaryotes Contain a circular piece of DNA Contain Ribosomes Divide by Binary Fission Copyright 2009, John Ireland

25. Chloroplasts Copyright 2009, John Ireland

26. Endosymbiotic Theory Explains the origin of the mitochondria and plastid organelles Degenerate endosymbiotic prokaryotes Allows for hypothesis formation and testing. Copyright 2009, John Ireland

27. Endosymbiotic Theory Copyright 2009, John Ireland Aerobic Eubacteria Photosynthetic Eubacteria Protoeukaryote Aerobic Eukaryote Photosynthetic Eukaryote

28. Evidence Supporting Theory Organelle ribosomes more closely resemble eubacterial ribosomes than eukaryotic ribosomes. DNA of Mitochondria is closely related to Rickettsia eubacteria. DNA of Chloroplasts is closely related to blue-green photosynthetic eubacteria. Copyright 2009, John Ireland