Organelles and cytoplasm pp

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Organelles and cytoplasm pp

  1. 1. Organelles and Cytoplasm
  2. 2. Basic Cell
  3. 3. Cytoplasm <ul><li>Cytoplasm is the substance of a cell other then that of the nucleus. </li></ul><ul><li>Cytoplasm is made up of three major elements; cytosol, organelles, and inclusions. </li></ul><ul><li>Most cellular activities happen in the cytoplasm. The cytoplasm can be thought of as the “factory area” of the cell. </li></ul>
  4. 4. Cytoskeleton <ul><li>Cytoskeleton is an elaborate network of protein structures that extend throughout the cytoplasm. </li></ul><ul><li>The cytoskeleton is made up of microtubules, filaments and microfilaments. </li></ul><ul><li>The cytoskeleton acts as the cells “bones and muscles”. </li></ul>
  5. 5. Cilia <ul><li>Cilia is tiny, hair-like projections on cell surfaces that move in a wavelike manner. </li></ul><ul><li>Cilia in the respiratory system lining move mucus up and away from the lungs. </li></ul>
  6. 6. Flagella <ul><li>Long, whiplike extensions of the cell membrane of some bacteria and sperm. </li></ul><ul><li>They serve to propel the cell. </li></ul>
  7. 7. Microvilli <ul><li>Microvilli are tiny, fingerlike extensions of the plasma membrane that project from an exposed cells surface. </li></ul><ul><li>They increase the cells surface. </li></ul><ul><li>The have a core of actin filaments. </li></ul>
  8. 8. Centrioles <ul><li>Minute body found near the nucleus of the cell composed of microtubule. </li></ul><ul><li>Active in cell division. </li></ul>
  9. 9. <ul><li>Organells that originate from the golgi apparatus. </li></ul><ul><li>Contains strong digestive enzymes. </li></ul>
  10. 10. Smooth Endoplasmic Reticulum <ul><li>The membrane network in cytoplasm that is composed of tubules or cisternae. </li></ul><ul><li>Some membranes carry ribosomes on their surfaces while others are smooth. </li></ul>
  11. 11. Rough Endoplasmic Reticulum <ul><li>All materials for the cell membrane are made in the RER. </li></ul><ul><li>“ cell factory” </li></ul><ul><li>Studded with rhibosomes. </li></ul>
  12. 12. <ul><li>Ribosomes are made of proteins and a type of RNA called rhibosomal RNA. </li></ul><ul><li>They produce proteins in cytoplasm. </li></ul><ul><li>They float free in cytoplasm. </li></ul>
  13. 13. Mitochondria <ul><li>The mitochondria is responsible for ATP generation. </li></ul><ul><li>“ Mighty Mitochondria” </li></ul>
  14. 14. Golgi Apparatus <ul><li>The golgi apparatus modifies and packages proteins close to the nucleus. </li></ul>
  15. 15. <ul><li>Vesicles are small membranous sacs </li></ul><ul><li>Packaging </li></ul><ul><li>They migrate to the plasma membrane, fuses with it, and then ruptures, spilling the sac contents out of the cell. </li></ul>
  16. 16. <ul><li>The control station or “headquarters”. </li></ul>
  17. 17. <ul><li>The center of the nucleus. </li></ul><ul><li>The prominent structure of the nucleus. </li></ul><ul><li>It produces ribosomes. </li></ul>
  18. 18. Mitosis <ul><li>Mitosis results in the formation of two daughter cells. When the nucleus divides, each daughter cell ends up with exactly the same genetic information as the mother cell. </li></ul><ul><li>Interphase  early prophase  late prophase  metaphase  anaphase  telophase  daughter cell. </li></ul>

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