PLASTIDS<br />
PLASTIDS<br />
Topic Outline<br /><ul><li>Plastids
Leucoplast
Chromoplast
Chloroplast
Photosynthesis</li></li></ul><li>Learning Objectives<br /><ul><li>Explain the functions of plastids.
 Identify the types of plastids.
 Explain the functions of chloroplast.
 Structures of chloroplast.
 Explain the Photosynthetic process.</li></li></ul><li>PLASTIDS<br />
PLASTIDS<br />Round or oval bodies containing pigment and commonly found in plants.<br />
PLASTIDS<br />All plastids come from the division of existing plastids.<br />
Functions<br />Storage of starch, pigments and other cellular products.<br />Chief power factory of plants in food synthes...
Types of Plastids<br />Chloroplast<br />Leucoplast<br />Chromoplast<br />
Chloroplast<br />Electron Micrograph of Chloroplast. Within the chloroplast are grana, which are stacks of membranes, and ...
Chloroplast<br />
Chloroplast<br />Kloros means green.<br />Green colored bodies containing chlorophyll. <br />
Chloroplast<br />Chlorophyll <br />   - green coloring pigment.<br />       -responsible for trapping light energy into ch...
Chloroplast<br />Larger and more complex than Mitochondria.<br />
Chloroplast<br />Also contain DNA<br />Membranous organelle.<br />
Functions<br />Site of photosynthesis.<br />Energy producing organelle.<br />
Structures:<br />1. Grana<br />2. Thylakoids<br />3.  Stroma<br />4.  Inner Membrane<br />5.  Outer Membrane<br />
Grana<br />Stacks of thylakoids membrane within the chloroplast.<br />
Thylakoids<br />Flattened sac-like membrane within a chloroplast.<br />
Thylakoids<br />Contain the enzymes necessary for light-dependent reactions.<br />
Thylakoids<br />
Stroma<br />Contain the enzymes of the light-independent reactions.<br />Ground matrix of chloroplast.<br />
Inner Membrane<br /><ul><li>Some spans the entire organelles.
 Others restricted to narrow stacks.</li></li></ul><li>Inner Membrane<br />Holds the pigments as well as many of the enzym...
Outer Membrane<br /><ul><li>Controls what enters and leaves the organelle.</li></li></ul><li>Photosynthesis<br />Takes pla...
Photosynthesis<br /><ul><li>It involves two series of  reactions: </li></ul>	 -The           photosynthesis         of ATP...
Light energy<br />Overview of Photosynthesis<br />H<br />O<br />Light-dependent<br />reactions<br />O<br />O<br />H<br />C...
Leucoplasts<br />Leuko means white.<br />Where starch, oils, proteins and lipids are stored.<br />Leucoplast[EM = Electron...
Leucoplasts<br />Colorless plastids present in non-photosynthesizing plant tissue.<br />Potato cells with stained starch g...
Leucoplasts<br />Serves as storage depots for energy rich starch as in potato tubes.<br />
Leucoplasts<br />A leucoplast that stored starch (amylose) is sometimes termed as amyloplast.<br />
Chromoplast<br />Chromo means colored<br />Storage organelle found in plant cells.<br />
Chromoplast<br />Colored pigments are found like:<br />Anthocyanins <br />Carotenoids<br />
Chromoplast<br />
Chromoplast<br />
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Plastids

  1. 1. PLASTIDS<br />
  2. 2. PLASTIDS<br />
  3. 3. Topic Outline<br /><ul><li>Plastids
  4. 4. Leucoplast
  5. 5. Chromoplast
  6. 6. Chloroplast
  7. 7. Photosynthesis</li></li></ul><li>Learning Objectives<br /><ul><li>Explain the functions of plastids.
  8. 8. Identify the types of plastids.
  9. 9. Explain the functions of chloroplast.
  10. 10. Structures of chloroplast.
  11. 11. Explain the Photosynthetic process.</li></li></ul><li>PLASTIDS<br />
  12. 12. PLASTIDS<br />Round or oval bodies containing pigment and commonly found in plants.<br />
  13. 13. PLASTIDS<br />All plastids come from the division of existing plastids.<br />
  14. 14. Functions<br />Storage of starch, pigments and other cellular products.<br />Chief power factory of plants in food synthesis.<br />
  15. 15. Types of Plastids<br />Chloroplast<br />Leucoplast<br />Chromoplast<br />
  16. 16. Chloroplast<br />Electron Micrograph of Chloroplast. Within the chloroplast are grana, which are stacks of membranes, and large starch granules. <br />
  17. 17. Chloroplast<br />
  18. 18.
  19. 19. Chloroplast<br />Kloros means green.<br />Green colored bodies containing chlorophyll. <br />
  20. 20. Chloroplast<br />Chlorophyll <br /> - green coloring pigment.<br /> -responsible for trapping light energy into chemical energy in photosynthesis.<br />
  21. 21. Chloroplast<br />Larger and more complex than Mitochondria.<br />
  22. 22. Chloroplast<br />Also contain DNA<br />Membranous organelle.<br />
  23. 23. Functions<br />Site of photosynthesis.<br />Energy producing organelle.<br />
  24. 24. Structures:<br />1. Grana<br />2. Thylakoids<br />3. Stroma<br />4. Inner Membrane<br />5. Outer Membrane<br />
  25. 25. Grana<br />Stacks of thylakoids membrane within the chloroplast.<br />
  26. 26.
  27. 27. Thylakoids<br />Flattened sac-like membrane within a chloroplast.<br />
  28. 28. Thylakoids<br />Contain the enzymes necessary for light-dependent reactions.<br />
  29. 29. Thylakoids<br />
  30. 30. Stroma<br />Contain the enzymes of the light-independent reactions.<br />Ground matrix of chloroplast.<br />
  31. 31. Inner Membrane<br /><ul><li>Some spans the entire organelles.
  32. 32. Others restricted to narrow stacks.</li></li></ul><li>Inner Membrane<br />Holds the pigments as well as many of the enzymes of photosynthesis.<br />
  33. 33. Outer Membrane<br /><ul><li>Controls what enters and leaves the organelle.</li></li></ul><li>Photosynthesis<br />Takes place in chloroplast.<br />Carbon Dioxide, water and light are converted into glucose and Oxygen.<br />6CO2 + 6H2O + C6H12O6 + 6O2<br />Carbon Water Glucose Oxygen<br />Dioxide<br />Energy<br />
  34. 34. Photosynthesis<br /><ul><li>It involves two series of reactions: </li></ul> -The photosynthesis of ATP & NADP.<br /> - The use of ATP & NADPH to produce sucrose.<br />
  35. 35. Light energy<br />Overview of Photosynthesis<br />H<br />O<br />Light-dependent<br />reactions<br />O<br />O<br />H<br />Chemical energy<br />H<br />ATP<br />NADPH<br />Chemical energy<br />H<br />O<br />C<br />Light-independent<br />reactions<br />C6H12O6<br />O<br />
  36. 36. Leucoplasts<br />Leuko means white.<br />Where starch, oils, proteins and lipids are stored.<br />Leucoplast[EM = Electron Micrograph]<br />
  37. 37. Leucoplasts<br />Colorless plastids present in non-photosynthesizing plant tissue.<br />Potato cells with stained starch grains in leucoplasts.<br />
  38. 38. Leucoplasts<br />Serves as storage depots for energy rich starch as in potato tubes.<br />
  39. 39. Leucoplasts<br />A leucoplast that stored starch (amylose) is sometimes termed as amyloplast.<br />
  40. 40. Chromoplast<br />Chromo means colored<br />Storage organelle found in plant cells.<br />
  41. 41. Chromoplast<br />Colored pigments are found like:<br />Anthocyanins <br />Carotenoids<br />
  42. 42. Chromoplast<br />
  43. 43. Chromoplast<br />
  44. 44. Anthocyanins<br /><ul><li>The pigments may have potential as food colorants.</li></li></ul><li>Carotenoids<br />Yellow and Orange pigments.<br />
  45. 45. Chromoplast<br />
  46. 46. That’s All…<br />
  47. 47. THE END….<br />PREPARED BY:<br />Arjanne J. Villamarzo<br />3sed-sc<br />

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