1 / 48

Photosynthesis Review

Photosynthesis Review. Light Dependent Reactions. View an animation of the light dependent reaction: http://www.biology4all.com/resources_library/source/61a.swf. Answer the following questions: What happens when Photosystem II absorbs sunlight?

obelia
Download Presentation

Photosynthesis Review

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Photosynthesis Review

  2. Light Dependent Reactions View an animation of the light dependent reaction: http://www.biology4all.com/resources_library/source/61a.swf • Answer the following questions: • What happens when Photosystem II absorbs sunlight? • Where do the electrons from Photosystem II go? • From where does Photosystem II regain its electrons? • To whom does Photosystem I give its electrons? • Where do the newly formed ATP and NADH go? • http://www.lucilledesign.com/BerkeleyHS/lab12.htm

  3. 1.What happens when Photosystem II absorbs sunlight? 2 electrons become excited and leave photosystem II. 2.Where do the electrons from Photosystem II go? To an electron acceptor. 3.From where does Photosystem II regain its electrons? Water splits to yield an e- 4.To whom does Photosystem I give its electrons? An electron acceptor then onto NADP 5.Where do the newly formed ATP and NADH go? Enter the light independent reaction (Calvin cycle)

  4. Calvin Cycle Click on the illustration to view an animation of the Calvin Cycle: http://www.bio.umass.edu/biology/conn.river/calvin.html

  5. 1. Name the orange colored plant pigment.What color does it reflect?What color does it absorb?

  6. 1. Name the orange colored plant pigment.What color does it reflect?What color does it absorb?The orange colored plant pigment is carotene.Carotene reflects orange-colored light.Carotene absorbs or uses all other colors oflight but orange.

  7. 2. Name the bright green-colored plant pigment.What color does it reflect?What color does it absorb?

  8. 2. Name the bright green-colored plant pigment.What color does it reflect?What color does it absorb?The bright green-colored plant pigment ischlorophyll a.Chlorophyll a reflects greenlight.Chlorophyll a absorbs and is energized by all colors of light but green.

  9. 3. Name the blue-green colored plant pigment.What color does it reflect?What color does it absorb?

  10. 3. Name the blue-green colored plant pigment.What color does it reflect?What color does it absorb?The blue-green colored plant pigment is chlorophyll b.Chlorophyll b reflects blue-green light.Chlorophyll b absorbs and is energized by all colors of light but blue-green.

  11. 4. Name the yellow colored plant pigment.What color does it reflect?What color does it absorb?

  12. 4. Name the yellow colored plant pigment.What color does it reflect?What color does it absorb?The yellow colored plant pigment is xanthophyll.Xanthophyll reflects yellow light.Xanthophyll absorbs and is energized by all colors of light except yellow light.

  13. 5.State the complete, balanced equation for photosynthesis.

  14. 5.State the complete, balanced equation for photosynthesis.The complete, balanced equation for photosynthesis is.........

  15. 6. State the 2 reactants or raw materials needed for photosynthesis.

  16. 6. State the 2 reactants or raw materials needed for photosynthesis.The 2 reactants or raw materials needed for photosynthesis are carbon dioxide and water.

  17. 7. State the 2 products made by photosynthesis.

  18. 7. State the 2 products made by photosynthesis.The 2 products made by photosynthesis are sugar (glucose) and oxygen.

  19. 8. State the 2 main colors of light that plants use for photosynthesis.

  20. 8. State the 2 main colors of light that plants use for photosynthesis.The 2 main colors of light that plants use for photosynthesis are the blue and red wavelengths of light.

  21. 9. In what organelle in the plant cell does photosynthesis occur?

  22. 9. In what organelle in the plant cell does photosynthesis occur?The organelle in the plant cell where photosynthesis occurs is the chloroplast. http://web.jjay.cuny.edu/~acarpi/NSC/13-cells.htm

  23. 10. What organelle found in many plants is shown in the whole diagram below?

  24. 10. What organelle found in many plants is shown in the whole diagram below?The organelle shown below is the chloroplast, seen in a cut-away side view.

  25. 11. What structure found in the chloroplast is shown by B in the diagram below?

  26. 11. What structures found in the chloroplast are shown by B in the diagram below? The structures found in the chloroplast that is shown by B in the diagram below are the thylakoids.

  27. 12. What structure found in the chloroplast is shown by A in the diagram below?

  28. 12. What structure found in the chloroplast is shown by A in the diagram below? The structure found in the chloroplast that is shown by A in the diagram below is the grana. The grana consists of stacks of thylakoids (B).

  29. 13. What structure found in the chloroplast is shown by C in the diagram below?

  30. 13. What structure found in the chloroplast is shown by C in the diagram below? The structure found in the chloroplast that is shown by C in the diagram below is the stroma. The stroma is the fluid filled space b

  31. 14. Why are structures A & B in the chloroplast green?

  32. 14. Why are structures A & B in the chloroplast green? Structures A & B in the chloroplast are green because their membranes are covered with the green chlorophyll molecules.

  33. 15. Which structures in the chloroplast, the thylakoids and the grana, or the stroma, requires the presence of light for their reactions to occur?

  34. 15. Which structures in the chloroplast, the thylakoids and the grana, or the stroma, requires the presence of light for their reactions to occur?Since their membranes contain chlorophyll, the thylakoids and the grana require the presence of light for their reactions to occur. Hence, their reactions are known as the light (dependent) reactions.

  35. 16. Which structures in the chloroplast, the thylakoids and the grana, or the stroma, does not require the direct presence of light for its reactions to occur?

  36. 16. Which structures in the chloroplast, the thylakoids and the grana, or the stroma, does not require the direct presence of light for its reactions to occur?The stroma (Calvin cycle) does not require the direct presence of light for its reactions to occur. Hence, its reactions are known as the light-independent reactions (they still need light reactions, ATP and NADPH products to proceed).

  37. 17. What molecule carries energy from the light reactions in the grana to the stroma where the energy is then stored in sugar molecules?

  38. 17. What molecule carries energy from the light reactions in the grana to the stroma where the energy is then stored in sugar molecules?ATP carries energy from the light reactions in the grana to the stroma where the energy is then stored in sugar molecules.

  39. 18. What molecule carries energy, electrons and hydrogen from the light reactions in the grana to the stroma where the energy and hydrogens are used to make sugar molecules?

  40. 18. What molecule carries energy, electrons and hydrogen from the light reactions in the grana to the stroma where the energy and hydrogens are used to make sugar molecules?NADPH carries energy, electrons and hydrogen from the light reactions in the grana to the stroma where the energy and hydrogens are used to make sugar molecules.

  41. 19. How are the thylakoids different from the grana?

  42. 19. How are the thylakoids different from the grana?Grana consist of stacks of many thylakoids on top of each other. Many thylakoids stackedtogether make up one grana.

  43. 20. How do the accessory pigments carotene, xanthophyll, and chlorophyll b help photosynthesis?

  44. 20. How do the accessory pigments carotene, xanthophyll, and chlorophyll b help photosynthesis?The accessory pigments carotene, xanthophyll, and chlorophyll b help photosynthesis by capturing energy in the form of light colors that chlorophyll a cannot capture. This ultimately makes photosynthesis more efficient!

  45. Literature Cited: http://ghs.gresham.k12.or.us/science/ps/sci/ibbio/cellenergy/photorev/basics/rev.htm http://www.science.smith.edu/departments/Biology/Bio231/calvin.html http://www.biology4all.com/resources_library/source/61a.swf http://www.freeclipartpictures.com/0frames/flowers.html http://office.microsoft.com/clipart/default.aspx?lc=en-us&cag=1 http://web.jjay.cuny.edu/~acarpi/NSC/13-cells.htm http://www.bio.umass.edu/biology/conn.river/calvin.html http://www.lucilledesign.com/BerkeleyHS/lab12.htm

More Related