"Photosynthesis Essentials: A Crossword Puzzle"

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Across
  1. 5. A by-product of water splitting in photosynthesis.
  2. 6. A protein that transfers electrons in the photosynthesis process.
  3. 7. The electron carrier that is produced in the light reactions.
  4. 9. A particle of light energy that drives photosynthesis.
Down
  1. 1. A copper-containing protein that transfers electrons in the photosynthetic chain.
  2. 2. The main product of the Calvin cycle.
  3. 3. Split during photosynthesis to provide electrons and oxygen.
  4. 4. dioxide Gas absorbed by plants during photosynthesis.
  5. 8. Reaction center of Photosystem II.
  6. 9. An electron carrier in the photosynthetic electron transport chain.