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  • 1. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. CHARACTERISTICS OF PROKARYOTIC AND EUKARYOTIC CELLS CHAPTER 4
  • 2. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Cellular Characteristics
  • 3. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Cellular Characteristics
  • 4. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Prokaryotic Cells  Sizes  Shapes  Arrangement
  • 5. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Typical Prokaryotic Cell
  • 6. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Cell Wall Components  Peptidoglycan  Outer Membrane  Lipolysaccharide A (LPS)  Periplasmic space
  • 7. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Gram Positive Cell Walls  Peptidoglycan  Teichoic Acids
  • 8. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Gram Negative Cell Walls  Outer Membrane  Periplasmic space – Digestive Enzymes – Protein pumps  LPS components
  • 9. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Other Cell Walls  Acid Fast Cell Wall  Cell Wall Deficient bacteria
  • 10. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Prokaryotic Plasma Membrane  Phospholipids  Fluid Mosaic
  • 11. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Prokaryotic Plasma Membrane
  • 12. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Internal structures  Cytoplasm  Ribosomes  Nuclear region
  • 13. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Inclusions  Chromatophores  Metachromatic granules  Vesicles
  • 14. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Endospores  Stasis versus vegetative state  Medically significant genera  Resistances  Dipicolinic acid
  • 15. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. External Prokaryotic Structures  Motility: – Flagellae – Axial filaments
  • 16. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Motility “Behaviors”
  • 17. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. External Prokaryotic Structures  Attachment: – Pili • Conjugation pili – Fimbriae
  • 18. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Glycocalyx  Capsule  Slime Layer
  • 19. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Eukaryotic Cell Structure
  • 20. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Core Cellular Components  Plasma membrane  Cytoplasm  Nucleus  Ribosomes
  • 21. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Mitochondria and Chloroplasts  Mitochondria
  • 22. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Mitochondria and Chloroplasts  Chloroplasts
  • 23. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Membranous Networks  Endoplasmic Reticulum  Golgi apparatus
  • 24. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Eukaryotic Organelles/ Inclusions  Lysosomes  Peroxisomes  Vacuoles  Cytoskeleton
  • 25. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Motility  Flagella  Cilia  Pseudopods
  • 26. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Cell Wall components  Plants  Fungi  Protozoan pellicle
  • 27. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Endosymbiosis  Mitochondria  Chloroplasts
  • 28. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Eukaryotic/Prokaryotic symbiosis observed in today’s world (Protozoan termite inhabitant with internalized bacteria)
  • 29. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Movement across Membranes  Diffusion  Osmosis  Active Transport
  • 30. Copyright © 2012 John Wiley & Sons, Inc. All rights reserved. Endo/Exocytosis  Engulfment (Endocytosis)  Phagocytosis  Extrusion (Exocytosis)