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Eukaryotic Cell Structures & Functions
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  1. Eukaryotic Cell Structures & Functions Ch7.3 (Ch7 Vocabulary Guide)

  2. An Organelle Is: A minute structure within a plant or animal cell that has a particular job or function.

  3. What are some functions that occur within a cell? Digestion Excretion Transportation of cell’s products Storage Protection Division Mobility Respiration or Photosynthesis

  4. Organelles found only in Plants: Cell Walls Cellulose Chloroplasts

  5. Plant Cell • Cellulose = carbohydrate found in cell walls • Cell Wall= forms rigid outer structure, made of cellulose (fiber)

  6. Cell wall Chloroplast Large vacuole PLANT CELL

  7. Found in both Plant and Animal Cells Organelles that surround cells for support: Cell Membrane= Semi-permeable, controls what enters and leaves the cell, outer containment envelope. Cytoskeleton = gives structure to a cell (#14)

  8. Nucleus Cell Membrane ANIMAL PLANT

  9. Control center for plant and animal cells: This organelle controls cell activities and reproduction

  10. Nucleus Nucleolus= “little nucleus” Animal Cell

  11. Control center for plant and animal cells: Nucleus = control center for activities & reproduction, DNA & chromosomes housed here. Nucleolus = contains and makes RNA

  12. Chromosome = coiled DNA: contains instruc-tions for char-acteristics of an organism. Control center for plant and animal cells: Chromatin = protein composing chromosomes

  13. Red Blood Cells have no: nucleus

  14. Control center for plant and animal cells: Nuclear membrane = protects and controls what goes in and out of the nucleus (notice the nuclear pores in this picture of a nucleus)

  15. Ribosomes= Site of Protein Synthesis on the E.R. Endoplasmic Reticulum ROUND Ribosomes

  16. Cytoplasm:or cytosol, = gel surrounds the organelles, contains enzymes

  17. ER = Endoplasmic Reticulum: specializes in the production & transport of lipids and membrane proteins Rough ER has ribosomes Smooth ER lacks ribosomes Ribosomes: Whereproteins are manufactured.

  18. Endoplasmic Reticulum “Rough” with Ribosomes for protein synthesis “Smooth” = Membrane “highway” For transport of materials

  19. Golgi Bodies (aka Golgi Apparatus): where cell products are modified and packaged in vesicles for export from the cell. “Sacks” for making & storing Secretions

  20. Vacuole = storage for food and waterWhy are plant vacuoles larger than animal vacuoles? Plant Vacuole

  21. Some Animal cell vacuoles pump water out by contracting: Do you see 2 Contractile vacuoles in this Paramecium?

  22. Lysosome: Contains digestive enzymes Breaks down large molecules

  23. Chloroplast= absorbs light, changes light energy into chemical energy for photosynthesis = GREEN Sacks

  24. The power house of the cell: Mitochondria = site where energy is released from glucose in the form of: ATP