Cells

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Cells

  1. 1. Cell Organelles October 30, 2006
  2. 2. Prokaryotic Cells • In Greek: – Pro = before – karyotic = nucleus • Cell that do not have a nucleus • Bacteria
  3. 3. Eukaryotic Cells • In Greek: – Eu = True – Karyotic = nucleus • Cell that have a nucleus
  4. 4. Prokaryotic vs. Eukaryotic No Nucleus Nucleus No Membrane – covered Organelles Membrane – covered Organelles Circular DNA (in a circle) Linear DNA (in a line) Bacteria All other cells
  5. 5. Organelles • Cell structures that allow it to live, grow & reproduce.
  6. 6. • Keeps inside in & outside out • Interact with things outside the cell.
  7. 7. Cell Walls • Hard Wall made of cellulose. • Rigid & Stiff • Provides strength & support to cell membrane – Like our skeletal system
  8. 8. • Is the control center of the cell • Store information (DNA) on how to run the cell and build new structures. • Largest Organelle in the cell
  9. 9. • Place where amino acids are hooked together to make proteins, which are the building blocks for all structures built in the cell. • “Protein Factories” • Smallest Organelles in the cell
  10. 10. • Make lipids which are used for membranes. • Breaks down harmful chemicals & other substances • Packages proteins for release from the cell. • “Assembly line” that constructs & carries proteins
  11. 11. • The Powerhouse of the cell • Break down food to make ATP • ATP = energy (Adenosine triphosphate)
  12. 12. • Make food using the energy from the sun. • Change H2O & CO2 to C6H12O6 • Contain the green pigment chlorophyll. Chloroplasts
  13. 13. • Processes & transports materials out of the cell. • “Packaging center”
  14. 14. • Stores water & other fluids. Vacuole
  15. 15. • Digests food particles, wastes, cell parts & foreign invaders.
  16. 16. • Membrane bound compartments • Formed when part of the cell membrane surrounds an object & pinches it off.
  17. 17. Animal & Plant vs. Plant Cell Membranes Nucleus Ribosomes Mitochondria Golgi Complex Lysosomes Vesicles Cell Walls Vacuoles Chloroplasts
  18. 18. Animal Cell

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