assignment

1. PLASTIDS

2. PLASTIDS

4. Leucoplast

5. Chromoplast

6. Chloroplast

8. Identify the types of plastids.

9. Explain the functions of chloroplast.

10. Structures of chloroplast.

12. PLASTIDS Round or oval bodies containing pigment and commonly found in plants.

13. PLASTIDS All plastids come from the division of existing plastids.

14. Functions Storage of starch, pigments and other cellular products. Chief power factory of plants in food synthesis.

15. Types of Plastids Chloroplast Leucoplast Chromoplast

16. Chloroplast Electron Micrograph of Chloroplast. Within the chloroplast are grana, which are stacks of membranes, and large starch granules.

17. Chloroplast

19. Chloroplast Kloros means green. Green colored bodies containing chlorophyll.

20. Chloroplast Chlorophyll - green coloring pigment. -responsible for trapping light energy into chemical energy in photosynthesis.

21. Chloroplast Larger and more complex than Mitochondria.

22. Chloroplast Also contain DNA Membranous organelle.

23. Functions Site of photosynthesis. Energy producing organelle.

24. Structures: 1. Grana 2. Thylakoids 3. Stroma 4. Inner Membrane 5. Outer Membrane

25. Grana Stacks of thylakoids membrane within the chloroplast.

27. Thylakoids Flattened sac-like membrane within a chloroplast.

28. Thylakoids Contain the enzymes necessary for light-dependent reactions.

29. Thylakoids

30. Stroma Contain the enzymes of the light-independent reactions. Ground matrix of chloroplast.

35. Light energy Overview of Photosynthesis H O Light-dependent reactions O O H Chemical energy H ATP NADPH Chemical energy H O C Light-independent reactions C6H12O6 O

36. Leucoplasts Leuko means white. Where starch, oils, proteins and lipids are stored. Leucoplast[EM = Electron Micrograph]

37. Leucoplasts Colorless plastids present in non-photosynthesizing plant tissue. Potato cells with stained starch grains in leucoplasts.

38. Leucoplasts Serves as storage depots for energy rich starch as in potato tubes.

39. Leucoplasts A leucoplast that stored starch (amylose) is sometimes termed as amyloplast.

40. Chromoplast Chromo means colored Storage organelle found in plant cells.

41. Chromoplast Colored pigments are found like: Anthocyanins Carotenoids

42. Chromoplast

43. Chromoplast

45. Chromoplast

46. That’s All…

47. THE END…. PREPARED BY: Arjanne J. Villamarzo 3sed-sc