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Cell Organelles

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  1. Cell Organelles Eukaryotic Cells

  2. Cell Parts • Cells – the basic unit of life • Organelles - small structures inside a cell with specific functions. Analogy – City of Rocklin

  3. Cell Membrane/Plasma Membrane Cell membrane • Function: Regulates materials entering and exiting the cell. • Structure: Two layers of phospholipids, proteins Analogy – Rocklin city limits

  4. Cytoplasm Cytoplasm • Function:The fluid that all the organelles float in. • Structure: made up of fluid and organelles except for nucleus Analogy – All air, water, life that are in Rocklin, except City Hall

  5. Nucleus Nucleus • Function: “Control Center.”Stores DNA • Structure: membrane bound Analogy – City Hall

  6. Nuclear Envelope Nuclear Envelope • Function: Regulates what enters or exits the nucleus. • Structure: Double Layer of Lipids Analogy – Walls & Doors of City Hall

  7. Nucleolus Nucleolus • Function: Produces ribosomes • Structure: Inside Nucleus, separate from DNA Analogy – The Mayor

  8. Endoplasmic Reticulum Rough ER Smooth ER • Function: Transports proteins • Rough ER: has ribosomes • Smooth ER: no ribosomes • Structure: tubes and channels Analogy – Roads & Sidewalks

  9. Ribosomes Ribosomes Free Ribosomes • Function: Makes proteins. • Structure: small circular organelles Analogy – Restaurants, Factories, Builders.

  10. Vacuoles & Vesicles Vesicles • Function: Storage for water, nutrients or waste. • Structure: small membrane-bound organelle. Analogy – Grocery stores, water tanks.

  11. Lysosomes Lysosomes • Function: packets of enzymes that break down materials in a cell. • Structure: Small membrane-bound organelles Analogy – Recycling center

  12. Mitochondria Mitochondria • Function: Produce energy for the cell – site of cellular respiration. “The Powerhouse” • Structure: Double membrane-bound, kidney shaped. Analogy – PG&E

  13. Golgi Apparatus Golgi Apparatus • Function: Packages, labels and ships proteins out of the cell. • Structure: Pancake-shaped layered organelle Analogy – Post Office

  14. Cytoskeleton Microfilaments Microtubules • Function: Provide support and structure for the cell. • Microfilaments • Microtubules • Structure: Tubules Analogy – Wood, cement, steel beams

  15. Centrioles (Animals Only) Centrioles • Function: microtubules that help divide the cell during cell division. • Structure: Tubules Analogy – Rocklin High School vs. Whitney High School

  16. Chromatin (DNA) The genetic material within the cell

  17. Cilia & Flagella Cilia Flagella Flagella • Function: provides movement for the cell or objects moving by the cell. • Structure: • Flagella – 1 long fiber • Cilia – many short fibers Analogy – Cars or bicycles.

  18. Chloroplasts (Plants only) Chloroplasts • Function: site of photosynthesis (converting sun and CO2 into sugar). • Structure: Membrane bound organelles that contain chlorophyll Analogy – Solar Panels

  19. Cell Wall (Plant cells only) Cell Wall • Function: Provides support for the cell and the plant. • Structure: Made of cellulose Analogy – ground, rock wall

  20. Cell Parts Analogy • Create an analogy (besides the city analogy) for the cell and its parts • Possible ideas: • Stadium • School • Country • Restaurant • House • Mall • Waterpark

  21. Stadium Example: • Cell membrane: wall of stadium, gates • Cytoplasm: everything inside the stadium. • Nucleus: the control room for the stadium. • Etc…