Unit 3 pp #7

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Unit 3 pp #7

  1. 1. The Cell
  2. 2. Outline <ul><li>Cell Structure </li></ul><ul><ul><li>Prokaryote vs. Eukaryote </li></ul></ul><ul><ul><li>Plant vs. Animal </li></ul></ul><ul><ul><li>Organelles, structure and function </li></ul></ul><ul><li>Movement through the Cell </li></ul><ul><ul><li>Cell membrane </li></ul></ul><ul><ul><li>Passive transport </li></ul></ul><ul><ul><ul><li>Osmosis </li></ul></ul></ul><ul><ul><ul><li>Diffusion </li></ul></ul></ul><ul><ul><li>Active transport </li></ul></ul><ul><ul><ul><li>Endocytosis </li></ul></ul></ul><ul><ul><ul><li>Exocytosis </li></ul></ul></ul><ul><li>Types of Cells </li></ul>
  3. 3. The Cell Theory <ul><li>All living things are composed of cells. </li></ul><ul><li>Cells are the basic unit of structure and function in living things. </li></ul><ul><li>New cells are produced from existing cells. </li></ul>
  4. 4. Cells <ul><li>Unicellular – organism made up of only 1 cell </li></ul>
  5. 5. Cells <ul><li>Multicellular – organism made up of more than 1 cell </li></ul>
  6. 6. Cells <ul><li>Unicellular or multicellular? </li></ul>
  7. 7. Cells <ul><li>Unicellular or multicellular? </li></ul>
  8. 8. Cells <ul><li>Unicellular or multicellular? </li></ul>
  9. 9. Cells <ul><li>All cells contain: </li></ul><ul><ul><li>Cytoplasm </li></ul></ul><ul><ul><li>Cell membrane </li></ul></ul><ul><ul><li>Ribosomes </li></ul></ul><ul><ul><li>Genetic information (DNA) </li></ul></ul>
  10. 10. Cells <ul><li>Types : </li></ul><ul><ul><li>Prokaryote </li></ul></ul><ul><ul><li>Eukaryote </li></ul></ul><ul><ul><ul><li>Animal cells </li></ul></ul></ul><ul><ul><ul><li>Plant cells </li></ul></ul></ul>
  11. 14. Prokaryote Cells <ul><li>Cells missing a nucleus and organelles. </li></ul><ul><li>DNA is a single circle ( plasmid ). </li></ul><ul><li>All bacteria are prokaryotes. </li></ul><ul><li>All prokaryotes are unicellular . </li></ul>
  12. 15. Prokaryote
  13. 16. Eukaryote <ul><li>Cells have a nucleus and organelles. </li></ul><ul><li>Eukaryotes may be unicellular or multicellular </li></ul><ul><li>Two types: </li></ul><ul><ul><li>Animal cells </li></ul></ul><ul><ul><li>Plant cells </li></ul></ul>
  14. 17. Eukaryote
  15. 18. Animal Cells <ul><li>Eukaryotic cell that does not contain a: </li></ul><ul><ul><li>cell wall </li></ul></ul><ul><ul><li>large vacuole </li></ul></ul><ul><ul><li>Chloroplasts </li></ul></ul><ul><li>Does NOT photosynthesize. </li></ul>
  16. 19. Animal Cells
  17. 20. Plant Cells <ul><li>Eukaryotic cell that contains: </li></ul><ul><ul><li>large vacuole </li></ul></ul><ul><ul><li>Cell wall </li></ul></ul><ul><ul><li>chloroplasts </li></ul></ul><ul><li>Photosynthesizes. </li></ul>
  18. 21. Plant Cells
  19. 22. Cell Parts <ul><li>Cytoplasm </li></ul><ul><ul><li>Found in all cells. </li></ul></ul><ul><ul><li>Semi-liquid medium that makes up the most of the cell. </li></ul></ul><ul><ul><li>Contains enzymes & nutrients that help reactions occur. </li></ul></ul>
  20. 23. Cell Parts <ul><li>Cell Membrane </li></ul><ul><ul><li>Structure surrounding all cells. </li></ul></ul><ul><ul><li>Controls what molecules may enter and/or exit the cell. </li></ul></ul>
  21. 24. Cell Parts <ul><li>Ribosomes </li></ul><ul><ul><li>Found in all cells. </li></ul></ul><ul><ul><li>Produces proteins. </li></ul></ul>
  22. 25. Cell Parts <ul><li>DNA </li></ul><ul><ul><li>Found in all cells. </li></ul></ul><ul><ul><li>Contains the genetic information required for life. </li></ul></ul><ul><ul><li>1 circular strand in prokaryotes. </li></ul></ul><ul><ul><li>Many linear (double helix) strands in eukaryotes. </li></ul></ul>
  23. 26. Cell Parts <ul><li>Nucleus </li></ul><ul><ul><li>Found in all eukaryotes. </li></ul></ul><ul><ul><li>Membrane bound structure that contains DNA. </li></ul></ul>
  24. 28. Cell Parts <ul><li>Endoplasmic Reticulum (ER) </li></ul><ul><ul><li>Found in all eukaryotes. </li></ul></ul><ul><ul><li>Passageway in which proteins travel after being produced by ribosomes. </li></ul></ul><ul><ul><li>Produces new membranes. </li></ul></ul>
  25. 29. Cell Parts <ul><li>Golgi Apparatus </li></ul><ul><ul><li>Found in all eukaryotes. </li></ul></ul><ul><ul><li>Packaging center for proteins and other cell products leaving the cell. </li></ul></ul>
  26. 30. Cell Parts <ul><li>Lysosome </li></ul><ul><ul><li>Found in animal cells. </li></ul></ul><ul><ul><li>Digests food molecules. </li></ul></ul><ul><ul><li>Destroys worn-out cell parts. </li></ul></ul><ul><ul><li>May destroy the cell. </li></ul></ul><ul><ul><li>‘ Suicide sac.’ </li></ul></ul>
  27. 31. Cell Parts <ul><li>Mitochondria </li></ul><ul><ul><li>Found in all eukaryotes. </li></ul></ul><ul><ul><li>Site of respiration. </li></ul></ul>
  28. 32. Cell Parts <ul><li>Chloroplast </li></ul><ul><ul><li>Found only in plant cells. </li></ul></ul><ul><ul><li>Site of photosynthesis. </li></ul></ul><ul><ul><li>Contains the pigment chlorophyll. </li></ul></ul><ul><ul><li>Appears green </li></ul></ul>
  29. 33. Cell Parts <ul><li>Vacuole </li></ul><ul><ul><li>Found in all eukaryotes. </li></ul></ul><ul><ul><ul><li>Very large in plant cells. </li></ul></ul></ul><ul><ul><ul><li>Small organelles in animal cells. </li></ul></ul></ul><ul><ul><li>Storage area for water and nutrients. </li></ul></ul>
  30. 34. Cell Parts <ul><li>Cell Wall </li></ul><ul><ul><li>Found only in plant cells. </li></ul></ul><ul><ul><li>Adds structure and support to the cell. </li></ul></ul>
  31. 35. Movement of the Cell <ul><li>Flagella </li></ul><ul><ul><li>Whip-like tail used to move the cell. </li></ul></ul>
  32. 36. Movement of the Cell <ul><li>Cilia </li></ul><ul><ul><li>Small, hair-like projections surrounding the cell. Used to move the cell. </li></ul></ul>

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