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Question of the Day. 1-13. The chemical equation for splitting water = 2H 2 O  4H + + 4e - + O 2 Write the balanced chemical equation for photosynthesis. Write a chemical equation for the light reactions (does not have to be balanced). Announcement. 1-13.

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1-13

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  1. Question of the Day 1-13 • The chemical equation for splitting water = 2H2O  4H+ + 4e- + O2 • Write the balanced chemical equation for photosynthesis. • Write a chemical equation for the light reactions (does not have to be balanced).

  2. Announcement 1-13 Quiz up to and including the light reactions (notes pages 1-7) on Wednesday 1-19

  3. REVIEW 1-13 • How are heterotrophs and autotrophs different? 2. Photosynthetic pigments … 3. What colors does a plant primarily use for photosynthesis? How do you know?

  4. Review 4. Photosynthesis uses… Photosynthesis produces… 1-13 5. Where do the light reactions take place? 6. Why is the splitting of water molecules important for photosynthesis?

  5. Review 7. The light rxns use… To produce… 1-13 8. What’s the electron transport chain?

  6. DRAW! Also label: thylakoid grana stroma Admit Slip

  7. Question of the Day 1-14 During the light reactions water is split apart into ____, ____, and ____

  8. Admit slip Question sheet

  9. QUICK TALK Thylakoid Carbon dioxide Photosynthesis Producer Stroma Heterotroph NADPH Light Reactions Glucose Chloroplast Autotroph Chlorophyll Chemosynthetic bacteria

  10. Light Reactions

  11. Light Reactions What happens during step # 1 above? Chlorophyll absorbs light energy and its electrons become excited and move to the electron transport chain What happens during steps # 2-3 above? The excited electrons move through the proteins of the electron transport chain What happens during step # 4 above? Light excites electrons on Photosystem I (accessory pigments)

  12. Light Reactions What happens between steps 4 and 5 above? The excited electrons move through the proteins of the electron transport chain What happens during step # 5 above? NADP+ and H+ are combined to form NADPH

  13. Summary

  14. Explain what’s going on with protons above: 1. _____ splits apart producing PROTONS, electrons, and oxygen. 2. Protons can only leave the thylakoid through an _____________________________. The movement of protons through this carrier protein provides the energy needed to form _____ from __________. 3. Some of the protons are pumped back into the thylakoid and some are used to make ________ from NADP+ and H+. H2O ATP producing carrier protein ATP ADP + P NADPH

  15. Question of the Day 1-20 4 things you know about photosynthesis are…

  16. Summarizing Assignment

  17. Announcement 1-19 Quiz up to and including the light reactions (notes pages 1-7) on Friday 1-21

  18. Review Photosynthesis uses… Photosynthesis produces… 1-19 Where do the light reactions take place? Why is the splitting of water molecules important for photosynthesis?

  19. Review The light rxns use… To produce… 1-19 What’s the electron transport chain? During the light reactions water is split apart into ____, ____, and ____

  20. Assignment 1st – Using a laptop (partner optional) complete the self check quiz for Chapter 6 Section 1 – you must show me when you get a 100%my.hrw.com 1-19 2nd – Complete #s 1-4 on page 118

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