Photophosphorylation

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Across
  1. 4. harvesting: complex containing chlorophyll associated with other proteins and membrane
  2. 7. excitation of this photosystem's reaction center drive electrons through the cytochrome b6f complex
  3. 9. responsible for reducing NADP+ to NADPH
  4. 10. photophosphorylation where ATP synthesis is driven by cyclic electron flow through PSI
  5. 11. center: site where light energy is converted to chemical energy
  6. 16. ultimate source of electrons passed to NADPH in plants during photosynthesis is water
  7. 18. main light absorbing pigment in photophosphorylation
  8. 19. proteins that carry electrons between the two photosystems
  9. 23. oxidoreductase: transfers electrons from reduced ferredoxin to NADP+
  10. 25. about the amount of ATP produced in noncyclic photophosphorylation
  11. 26. about the amount of NADPH produced in noncyclic photophosphorylation
  12. 28. b6f: complex linking PSI and PSII also responsible for driving protons across the plasma membrane
  13. 29. for every _____ photons absorbed, one electron is transferred from H2O to NADP+
Down
  1. 1. element that occupies the central position in a chlorophyll molecule
  2. 2. dependent: reaction that occurs when plants receive sunlight
  3. 3. synthase: responsible for driving ATP production
  4. 5. type of reaction center in bacteria that passes electrons through a quinone to an iron-sulfur center
  5. 6. splitting: this complex is catalyzed by a manganese and calcium containing protein
  6. 7. the capture of solar energy by photosynthetic organisms and its conversion to chemical energy
  7. 8. photophosphorylation that involves both photosystems
  8. 12. major accessory pigment that absorbs wavelengths chlorophyll cannot absorb
  9. 13. type of chlorophyll that transfers light energy to neighboring chlorophyll
  10. 14. after the electron passes through the b6f complex, it goes through this protein
  11. 15. pumped across thylakoid membrane to create energy through an electrochemical potential
  12. 17. evolving: this complex is responsible for passing four electrons one at a time to PSII across the thylakoid membrane
  13. 19. excitation of this photosystem's reaction center drive electrons to ferrodoxin and produce NADPH
  14. 20. heterotrophs: these organisms release carbon dioxide
  15. 21. type of reaction center in bacteria that passes electrons through pheophytin to a quinine
  16. 22. site of photophosphorylation
  17. 24. more loosely bound plastoquinone
  18. 27. assimilation: reaction occurs when plants are not receiving light