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The Cell

The Cell. Cell Theory. The Cell is the smallest unit of life Cells come from existing cells All cells use energy and have a metabolism All cells have a plasma membrane All cells have genetic information in the form of DNA. Cell Size. Cell Size. Ribosomes. Prokaryotic Cells.

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The Cell

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  1. The Cell

  2. Cell Theory • The Cell is the smallest unit of life • Cells come from existing cells • All cells use energy and have a metabolism • All cells have a plasma membrane • All cells have genetic information in the form of DNA

  3. Cell Size

  4. Cell Size

  5. Ribosomes

  6. Prokaryotic Cells

  7. Prokaryotic Cells

  8. Eukaryotic Cells

  9. Eukaryotic Cells

  10. Nuclear Lamina Chromosomes Chromatin Nucleolus Nucleus

  11. Rough Endoplasmic Reticulum • Secrete glycoproteins • Produce membranes

  12. Smooth Endoplasmic Reticulum • Synthesis of lipids • Detoxify the cell • Stores calcium ions

  13. Golgi Apparatus • The warehouse of the cell • Modifies • Stores • Ships • Cis Face • Trans Face

  14. Lysosomes

  15. Vacuoles / Vesicles

  16. Endomembrane System

  17. Mitochondrion

  18. Chloroplast / Plastid

  19. Peroxisome

  20. Cytoskeleton • Microtubules • Microfilaments • Intermediate Filaments

  21. Microtubules • Maintenance of cell shape • Cell motility • Chromosome division • Organelle movement

  22. Microfilaments • Maintenance of Cell Shape • Changes in Cell Shape • Muscle Contractions • Cytoplasmic Streaming • Cell Motility • Cell Division

  23. Centrioles, Cilia and Flagella

  24. Intermediate Filaments • Maintenance of Cell Shape • Anchorage of Nucleus and Organelles • Formation of Nuclear Lamina

  25. Cell Walls

  26. Extracellular Matrix

  27. Intercellular Junctions • Tight Junctions • Desmosomes (anchoring junctions) • Gap Junctions

  28. Plasmodesmata

  29. Autogeneous & Endosymbiosis

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