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CELLS

CELLS. Structure and Function Cell = smallest unit of life. Two Major Cell Types . Prokaryotic Cell. Eukaryotic Cell (protist, animal). Eukaryotic Cell (plant). Differences Between Cell Types. Common Components and Cellular Organization. Plasma Membrane boundary surrounding the cell

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CELLS

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  1. CELLS Structure and Function Cell = smallest unit of life

  2. Two Major Cell Types

  3. Prokaryotic Cell

  4. Eukaryotic Cell (protist, animal)

  5. Eukaryotic Cell (plant)

  6. Differences Between Cell Types

  7. Common Components and Cellular Organization • Plasma Membrane • boundary surrounding the cell • Genetic material: DNA • located in a membrane-bound nucleus for eukaryotic cells • Cytoplasm • Semi-fluid matrix containing enzymes and organelles(enzyme = biological catalyst) • Cytoskeleton • network of filaments and tubules in cytoplasm that maintains cell shape, allows movement

  8. Features of Prokaryotic Cells All prokaryotic cells contain

  9. Features of Prokaryotic Cells Other possible prokaryotic structures

  10. Features of Prokaryotic Cells Other possible prokaryotic structures

  11. In bacterial cells where is the genetic material located? which one is used for movement? which one provides structural support for the cell? Cell Wall Flagellum Capsule Plasmid Nucleoid Applying Your Knowledge

  12. Functions of Eukaryotic Cell Features

  13. Functions of Eukaryotic Cell Features

  14. Functions of Eukaryotic Cell Features

  15. SER Functions of Eukaryotic Cell Features RER

  16. Functions of Eukaryotic Cell Features

  17. Functions of Eukaryotic Cell Features

  18. Rough Endoplasmic Reticulum Smooth Endoplasmic Reticulum Vesicle Golgi Apparatus Lysosome Vesicle Vesicle Plasma Membrane Endomembrane System

  19. Functions of Eukaryotic Cell Features

  20. Functions of Eukaryotic Cell Features

  21. Functions of Eukaryotic Cell Features

  22. Functions of Eukaryotic Cell Features

  23. Functions of Eukaryotic Cell Features

  24. Functions of Eukaryotic Cell Features

  25. Functions of Eukaryotic Cell Features

  26. Which organelle produces proteins that will be exported from the cell? Which organelle contains digestive enzymes? Which site acts as a protein packaging and distribution center? Cilium Rough ER Golgi apparatus Smooth ER Lysosome Applying Your Knowledge

  27. Thought Questions • What are similarities for a. eukaryotic and prokaryotic cells? b. animal and plant cells? 2. What are differences between a. eukaryotic and prokaryotic cells? b. animal and plant cells?

  28. Analogy If the cell were a factory the ____________________ would be (name a cell component) a _____________________________.(name a part of a factory)

  29. Cellular Interactions • Signal Transduction: passing a signal from the cell surface to the interior • First messenger binds to Cell Surface Receptor • Receptor signals nearby Regulator Protein • Regulator activates nearby enzyme • Enzyme catalyzes formation of Second Messenger • Second Messenger initiates Cellular Response

  30. Cellular Interactions • Cell Adhesion: joining of cells controlled by proteins called Cellular Adhesion Molecules (CAMS) important in • Inflammatory Response • Placenta Formation • Learning and Memory Lack of cell adhesion is implicated in cancer and arthritis.

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