Chapter 8 Vocabulary

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Across
  1. 4. passes energy from sunlight to the reaction center in each photosystem (three words)
  2. 8. organism that can build organic molecules using energy taken from inorganic chemicals instead of sunlight
  3. 11. photosynthetic pigment that functions to dispose of excess energy
  4. 14. middle layer of chlorophyll cells in a leaf
  5. 16. first stage of photosynthesis (three words)
  6. 17. form of chlorophyll that absorbs violet-blue and red light and has a blue/green color (two words)
  7. 18. used in the light-dependent reactions of photosynthesis to absorb light energy and convert it to chemical energy
  8. 19. accessory pigment that absorbs blue and red-orange light and has a yellow/green color (two words)
  9. 20. space bound by a membrane where protons accumulate during photosynthesis (two words)
  10. 21. distance between consecutive points of equal positions of a wave in a graphic representation
  11. 24. fluid-filled space surrounding the grana where the light-independent reactions occur
  12. 25. ejection of an electron from a reaction center using the energy of an absorbed photon
  13. 26. organism capable of producing its own organic compounds from sunlight
  14. 27. organism that consumes organic substances for food
  15. 28. group of reversibly oxidizable and reducible proteins that form parts of the electron transport chain between photosystem 2 and 1 (two words)
  16. 29. pigment that accepts an energized electron from the reaction center (three words)
Down
  1. 1. gain of electron(s) by an atom or molecule
  2. 2. second stage of photosynthesis (three words)
  3. 3. group of proteins between photosystem 2 and 1 that pass electrons and use the energy created to move hydrogen ions against the concentration gradient (three words)
  4. 5. stack of thylakoids
  5. 6. range of all possible frequencies of radiation (two words)
  6. 7. chlorophyll and other organic molecules that is assemebled around a primary electron acceptor (two words)
  7. 9. pigment molecule that directly absorbs light and transfers the energy to other pigment molecules (two words)
  8. 10. process of converting inorganic co2 into organic compounds (two words)
  9. 12. instrument that can measure transmitted light and compute the absorption
  10. 13. light-independent reactions of photosynthesis (two words)
  11. 15. molecule that is capable of absorbing certain wavelengths of light and reflecting others
  12. 20. disc-shaped structure inside of a chloroplast where light-dependent reactions occur
  13. 22. range of wavelengths of electromagnetic radiation absorbed by given substance (two words)
  14. 23. 'packet' of light energy