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TOPIC : Cells AIM : Describe the different cell organelles and their functions.

TOPIC : Cells AIM : Describe the different cell organelles and their functions. Do Now : Explain what all living cells are made up of. HW : Read p. 39. Write a paragraph describing the two types of cells that exist. Cell Membrane. “SECURITY GUARD”. Cell membranes are like gates.

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TOPIC : Cells AIM : Describe the different cell organelles and their functions.

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  1. TOPIC: Cells AIM: Describe the different cell organelles and their functions. Do Now: Explain what all living cells are made up of. HW: Read p. 39. Write a paragraph describing the two types of cells that exist.

  2. Cell Membrane

  3. “SECURITY GUARD”

  4. Cell membranes are like gates.

  5. Plasma Membrane • Surrounds the cell

  6. Semi-permeable or Selectively permeable: controls what enters & leaves the cell

  7. Made of a bilayer of lipids with proteins

  8. Cytoplasm

  9. Cytoplasm is the gelatin-like material that is found inside the cell membrane.

  10. Jellylike material • Holds cell organelles

  11. Nucleus

  12. “BRAIN” of the cell (Control center of the cell)

  13. Controls all cell activities • Stores hereditary information (DNA)

  14. Nucleolus: produces ribosomes

  15. Surrounded by the nuclear membrane

  16. Nucleus of a Mouse Spleen Cell

  17. Onion Cells

  18. Cheek Cell

  19. Ribosomes

  20. Produce proteins

  21. Found • Floating free in cytoplasm

  22. on Endoplasmic Reticulum

  23. Endoplasmic Reticulum (ER) Nucleus

  24. “HIGHWAY OF THE CELL”

  25. Channels in the cytoplasm • Used to TRANSPORT materials • 2 types of ER:

  26. 1.Rough ER: ribosomes on surface

  27. 2.Smooth ER: no ribosomes on surface

  28. Rough ER

  29. Smooth ER

  30. TOPIC: Cells AIM: Describe the different cell organelles and their functions. Do Now: Take out your notes packet. You will be using the space under the Endoplasmic reticulum box. Write out numbers 1 – 10. HW: Work on your science fair project!

  31. Identify the cell organelle described: • Controls all cell activities. • Made up of a bilayer of lipids and proteins. • Produces proteins. • Is selectively permeable. • Transports substances around the cell.

  32. 6. Produces ribosomes. 7. Has ribosomes on its surface. 8. Holds all cell organelles. 9. Contains DNA. 10. Controls what enters and leaves the cell.

  33. Mitochondria

  34. “POWERHOUSE” of the cell Mighty Mitochondria

  35. Where ENERGY is produced (cell respiration) ATP

  36. Vacuoles

  37. Stores materials (food, water, wastes…)

  38. Animal = many small • Plant = few large

  39. Golgi Bodies

  40. When a protein is made in the ER, something called a vesicle is made. This vesicle or sac floats through the cytoplasm to the Golgi apparatus and is absorbed. After the Golgi does its work on the molecules inside the sac, a secretory vesicle is created and released into the cytoplasm. From there, the vesicle moves to the cell membrane and the molecules are released out of the cell.

  41. “UPS / POST OFFICE” • Collects, packages, and sends materials out of the cell

  42. Lysosome

  43. Contain digestive enzymesthat: 1. digest food 2. break down old organelles & bacteria

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