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11.24.2010~WARM-UP

11.24.2010~WARM-UP. PICK TWO WORDS OFF THE WORD WALL THAT YOU DO NOT KNOW : 1. ENTER THEM INTO YOUR VOCAB BOOKS 2.FIND THE DEFINITION 3. CREATE A PICTURE OR SYMBOL FOR EACH WORD 4. WRITE THE DATE ON EACH ONE *WHEN FINISHED STUDY WORDS!! Reminder : Color in Notebook = Extra Credit.

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11.24.2010~WARM-UP

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  1. 11.24.2010~WARM-UP • PICK TWO WORDS OFF THE WORD WALL THAT YOU DO NOT KNOW: 1. ENTER THEM INTO YOUR VOCAB BOOKS 2.FIND THE DEFINITION 3. CREATE A PICTURE OR SYMBOL FOR EACH WORD 4. WRITE THE DATE ON EACH ONE *WHEN FINISHED STUDY WORDS!! Reminder: Color inNotebook= ExtraCredit

  2. Essential Question: Why is it essential for all organelles in a cell to perform a specific function? I can: Describe the function of the major organelles Identify the parts of the cell Compare and contrast animal and plant cells Objectives and Essential Question

  3. PARTS OF THE CELL

  4. Eukaryote Prokaryote What are two types of cells? • Eukaryotic φ Contains a nucleus φ Found in protists, fungi, plants, and animals • Prokaryotic φ Contains no nucleus φ Found in bacteria

  5. SOL PRACTICE #1

  6. What is an organelle? • Tiny structures that carry out specific functions within a cell Key: P= Plant A= Animal B=Both That’s a lot of stuff in something so small!

  7. The cell membrane acts like a suit of armor What is a cell membrane? • Performs a number of critical functions for the cell. • The outside boundary of a cell • Regulates which substance can enter or leave the cell • Both-B

  8. What is a cell wall? (plant only) • A rigid layer of nonliving material that surrounds the cells of plants • Helps support and protect the cells and give the cell structure • Made of cellulose

  9. SOL PRACTICE #2

  10. What is the cytoplasm? • The clear, jelly-like fluid (mostly water) inside a cell. Supports organelles. • Both-B That orange thing is the nucleus!

  11. What is the nucleus? • Cell’s control center • Directs all the cell’s activities • Both-B • Within the nucleus - • Contains CHROMATIN (genetic material), tiny strands • Contains the NUCLEOLUS(Dark spot) where ribosomes are made. Holds DNA,RNA and proteins. Place where protein synthesis begins • Outside the nucleus- • The NUCLEAR MEMBRANE/ENVELOPEsurrounds the nucleus and protects the nucleus. Allows materials in and out of the nucleus.

  12. SOL PRACTICE #3 • Which of these functions most like the “brain” of a cell? A. The nucleus B. The Golgi apparatus C. The mitochondrion D. The smooth endoplasmic reticulum

  13. What are ribosomes? • Function as factories to produce proteins • Can float free or be attached to the outer surface of endoplasmic reticulum • Both-B

  14. SOL PRACTICE #4 • Which of these is responsible for the “rough” appearance of endoplasmic reticulum? A. DNA B. Enzymes C. Lysosomes D. Ribosomes

  15. SOL PRACTICE #5 • A cell with numerous ribosomes is probably specialized for — A. enzyme storage B. energy production C. cell division D. protein synthesis

  16. What is the endoplasmic reticulum? • Rough ER *Has ribosomes *Manufactured proteins *Transports and delivers proteins *Both-B • Smooth ER *No ribosomes *Detoxify drugs from cell • Makes lipids for cell memembrane • Both-B • Basic function: Carries proteins and other materials from one part of the cell to another

  17. SOL PRACTICE # 6

  18. What are golgi bodies? • Cell’s mailroom • Receives proteins and other newly formed materials from the ER, sorts, packages them and delivers them from the Rough ER to other parts of the cell • Both-B

  19. SOL PRACTICE #7 • What repackages proteins into forms the cell can use, expel, or keep stored? A. Lysosomes B. Mitochondria C. Golgi bodies D. Centrioles

  20. What are lysosomes? • Cell’s clean up crew • Digestive sacks (enzymes) • Contains chemicals that break down large food particles to smaller ones • Destroys bacteria • Both-B

  21. What are vacuoles? • Cell’s storage area/ Storage sacs • Stores food and other materials • Animal cells have many small vacuoles • Plant cells have only a few large vacuoles

  22. What are mitochondria? • Powerhouse of the cell • Produces most of the energy the cell needs to carry out its functions. • Energy- CELLULAR RESPIRATION • Both-B

  23. What are chloroplasts? (plant only) • Site of Photosynthesis • Captures energy from sunlight and uses it to produce food (sugar) for the cell • Main source of energy in plants • Reason why plants are green • Plant--P

  24. The eukaryotic organism described above should be classified as — A. an animal B. a bacterium C. a fungus D. a plant SOL PRACTICE #8

  25. SOL PRACTICE #9

  26. What are bacterial cells? • No nucleus Chromatin (a single ring of genetic material) and nucleolus are found in the cytoplasm Smaller than eukaryotic cells • Bacterial cells have a cell wall (different than a plant’s cell wall) and a cell membrane

  27. The hypothesis best supported by this graph is that these beetles are most active when the area is — A. free from predators B. coolest with some sunlight C. wettest from dew D. richest in oxygen supplies SOL PRACTICE #10

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