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Cell Parts

Cell Parts. Ms. Ethridge, Ms. Milstead, Ms. Myers, Ms. Palermo. Objectives. Identify the cell parts of an animal. Focus on the functions of the cell parts. The Parts of the Cell. Cytoplasm - fluid filled interior of cell - suspends cell organelles. The Nucleus . Nucleus

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Cell Parts

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  1. Cell Parts Ms. Ethridge, Ms. Milstead, Ms. Myers, Ms. Palermo

  2. Objectives • Identify the cell parts of an animal. • Focus on the functions of the cell parts.

  3. The Parts of the Cell

  4. Cytoplasm- fluid filled interior of cell- suspends cell organelles

  5. The Nucleus 

  6. Nucleus • Surrounded by a nuclear envelope with nuclear pores • Contains the genetic information (DNA) which exists as chromatin in a non-dividing cell • Controls all cell activities • Nucleolus • In the center of the nucleus • Produces the ribosomes

  7. Cell Membrane • The thin layer of protein and fat that surrounds the cell. The cell membrane is semi permeable, allowing some substances to pass into the cell and blocking others.

  8. Chromosomes • Eukaryotes (cells with nuclei such as those found in plants, yeast, and animals) possess multiple large linear chromosomes contained in the cell's nucleus. • In the nuclear chromosomes of eukaryotes, the uncondensed DNA exists in a semi-ordered structure, where it is wrapped around histones (structural proteins), forming a composite material called chromatin.

  9. Mitochondria - Produces cellular energy in the form of ATP through a process called cellular respiration (metabolizes glucose)

  10. Figure 4.17

  11. Ribosomes -site of protein synthesis -links amino acids together to form proteins

  12. EndoplasmicReticulum- transport system within the cell- transport cell materials- two types: rough (with ribosomes) and smooth

  13. Rough ER -has ribosomes which give it its "rough" appearance-functions in protein synthesis Smooth ER -mostly contains enzymes that function in lipid synthesis)

  14. Figure 4.10a

  15. GolgiApparatus --flattened stacks of membranes --collects, packages and modifies cell materials to be used in other parts of the cell or transported out of the cell

  16. Lysosomes -digests and recycles old cell parts, sometimes bacteria -contain high levels of enzymes

  17. Vacuole • mainly storage of water in plant cells, some waste - some animal cells have small vacuoles

  18. Centrioles - used during cell division to move and separate chromosomes • only found in animal cells

  19. Figure 4.7a

  20. Figure 4.13

  21. Figure 4.16

  22. Figure 4.17a

  23. a.  ________________ b.  ________________ c.  _________________ d.  _________________ e.  _________________ f.  __________________ f.

  24. Objectives • Identify the cell parts of an animal. • Focus on the functions of the cell parts.

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