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Cell Structure & Function

Cell Structure & Function. 4/1/2014. 4. Days until Kelly Clarkson’s birthday, April 24, 2011. 227. Today’s Warm-Up. A little cell song (and video). We are cells. We love Kelly Clarkson. Today’s Warm-Up. “Cell” BrainPop. I wonder if robots are made out of cells???. Today’s Objectives.

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Cell Structure & Function

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  1. Cell Structure & Function 4/1/2014 4

  2. Days until Kelly Clarkson’s birthday,April 24, 2011 227

  3. Today’s Warm-Up • A little cell song (and video) We are cells. We love Kelly Clarkson.

  4. Today’s Warm-Up • “Cell” BrainPop I wonder if robots are made out of cells???

  5. Today’s Objectives • Cell Organelle BrainPop • Cell Song • Two categories of cells • The cell as a factory • Cell organelles • Cell organelle worksheet (as we go) • Cell Microslide Lab Activity • Cell Analogy Project

  6. Cell Structure and Function Questions Vocabulary words Formulas Main Ideas Possible Test Questions Key Concepts Notes Notes Notes Notes Notes Notes Notes Notes Notes Notes Summary of the notes and information learned

  7. Definition of Cell A cell is the smallest unit that is capable of performing life functions.

  8. Cell Theory (Teoría) • All living things are made up of cells. • Cells are the smallest working units of all living things. • All complex cells come from preexisting cells through cell division.

  9. Two Major Types of Cells Prokaryotic- “simple” cells Eukaryotic- “complex” (complejo) cells Most living things you are familiar with (including humans) have eukaryotic cells.

  10. Prokaryotic • Do not have a nucleus or other organelles • One-celled organisms,bacteria, etc. Bacteria cell in the process of reproducing (dividing)

  11. Eukaryotic • Contain a nucleus and other organelles (smaller parts) surrounded by membranes • Most living organisms have these type of cells Animal cell Plant cell

  12. Prokaryote: -has no organelles (no nucleus) Prokaryote vs. Eukaryote Both: -are living -have DNA -are cells Eukaryote: -has organelles (has a nucleus)

  13. “Typical” Animal Cell

  14. “Typical” Plant Cell

  15. Cell Parts Organelles: “little organs” Think of a cell as a factory- lots of separate people, departments, and machines that each have their own task, but they work together to get a job done.

  16. Surrounding the Cell

  17. Cell Membrane Cell Membrane (like factory doors and gates): surround the cell provide communication with other cells control entrance and exit of materials, thereby maintaining internal balance

  18. Cell Wall (plants only) • Cell Wall (like factory outer walls): further protects the cell and provides strength

  19. Inside the Cell

  20. Nucleus • Cell nucleus (like the factory central office): the “boss” of the cell • Directs all cell activities • Separated by a nuclear membrane (it’s own “cell wall”) • Contains genetic material - DNA

  21. Cytoplasm • Cytoplasm (like the factory floor): contains and carries all other organelles • Gel-like material; the “goop” of the cell

  22. Endoplasmic Reticulum • Endoplasmic reticulum (like factory conveyor belts): move materials around in cell • Smooth type: has no ribosomes • Rough type (pictured): has ribosomes in surface

  23. Ribosomes • Ribosomes (like the factory assembly line): put together proteins • Each cell contains thousands • Found on reticulum and floating throughout the cell

  24. Mitochondria • Mitochondria (like the factory generator): the “power plant” of the cell • Produces energy through chemical reactions – breaking down fats & carbohydrates

  25. Golgi Bodies (Apparatus) • Golgi bodies (like the factory packing and shipping department): the UPS or Fed-Ex of the cell • Transports and packages proteins and other materials in the cell • Moves materials within the cell • Moves materials out of the cell

  26. Lysosome • Lysosomes (like the factory waste management dpartment): the “wrecking crew” and “trash can” of the cell • Transports undigested material to cell membrane for removal • Cell breaks down if lysosome explodes or ruptures 

  27. Vacuoles • Vacuoles (like factory storage/factory water tower): the “storage container” of the cell • Sacs for storage, digestion, and waste removal • Help plants maintain shape- very large in plants

  28. Chloroplast (plants only) • Chloroplasts (like factory solar energy plants): turns energy from the sun (with CO2 and water) into food • Contains green chlorophyll • Where photosynthesis takes place

  29. Flagella • Flagella (like factory trucks/18-wheelers): can move the whole factory if needed • Allow the cell to move (many single-celled organism have flagella)

  30. Today’s Lab Activity • Cell Microslide Lab Activity • Using the Microslide viewers and the slide set booklet- answer the questions on the student worksheet- “Cell Structure” • We’ll work in groups of 2-3 • Staple and turn in all pages when complete!

  31. Today’s Assignment How about an example? • Cell Analogy Project(cell structures) • Your cell analogy can NOT be a factory • You may choose a plant or animal cell • 100 pts possible

  32. Cell Structure and Function One thing I already knew about cells was: One thing I learned new about cells was: Questions Vocabulary words Formulas Main Ideas Possible Test Questions Key Concepts Notes Notes Notes Notes Notes Notes Notes Notes Notes Notes Summary of the notes and information learned

  33. Make it a great day Mustangs!

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