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The Animal Cell Key Concept: Eukaryotic cells contain membrane bound organelles

The Animal Cell Key Concept: Eukaryotic cells contain membrane bound organelles. All living things are composed of cells Eukaryotic cells contain membrane-bound organelles. Cell Membrane/Plasma Membrane. Barrier to extra-cellular environment Allows nutrients in and wastes out

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The Animal Cell Key Concept: Eukaryotic cells contain membrane bound organelles

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  1. The Animal CellKey Concept: Eukaryotic cells contain membrane bound organelles • All living things are composed of cells • Eukaryotic cells contain membrane-bound organelles

  2. Cell Membrane/Plasma Membrane • Barrier to extra-cellular environment • Allows nutrients in and wastes out • Identifies the cell • Receives messages from other cells

  3. Nucleus • Controls the cells activities • Contains the genetic material (DNA) • Surrounded by a nuclear membrane

  4. Nucleolus • Manufactures ribosomes

  5. Nuclear Membrane • Keeps the DNA inside • Allows the RNA to pass into the cell

  6. Cytoplasm • Gel-like fluid that fills the cell • Breaks down some glucose for energy (glycolysis) – not much energy • Filled with free-floating subunits

  7. Mitochondria • Metabolizes glucose for energy – provides a great deal of energy • Has its’ own DNA • Has a double membrane

  8. Endoplasmic Reticulum • Two types of ER • RER (rough endoplasmic reticulum) contains ribosomes • Manufactures and transports proteins • SER (smooth endoplasmic reticulum) has no ribosomes • Manufactures and transports lipids

  9. Ribosome • Makes proteins • Sometimes attached to RER • Sometimes free-floating in the cytoplasm

  10. Golgi Apparatus • Packages proteins • Modifies proteins • Prepares them for export to the organism outside the cell

  11. Vesicle • Transports proteins to and from the Golgi apparatus

  12. Lysosome • Digests worn out organelles • Destroys infected or un-necessary cells • Contains digestive enzymes

  13. Centriole • The centriole is found only in animal cells • It is involved in cell division

  14. Plant Cells • Plant cells have many of the same organelles as animals cells

  15. Plant Cells Have 2 Extra Organelles • Outside the cell membrane, plants have a cell wall • Plants have large central vacuoles • Plants have chloroplasts to convert sunlight to glucose

  16. Chloroplasts • Use CO2, H2O and sunlight to produce Carbohydrates • Releases O2 • Contains double membrane • Has its’ own DNA

  17. Chloroplast • Chlorophyll does the work • Chlorophyll is located in the thylakoid stacks • Thylakoid stacks are called granum

  18. Shape and Support • Made of cellulose (an indigestible form of carbohydrate) • Found just outside the plasma membrane

  19. Transport Into & Out of the Cell • Materials move from areas of high concentration to areas of low concentration • This is called diffusion

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