Photosynthesis Crossword

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Across
  1. 2. The fluid surrounding the thylakoid mem-branes within the chloroplast.
  2. 3. A protein complex involved in the light reactions. There are two photosystems involved in photosynthesis: photosystem II and photosystem I.
  3. 4. Organisms that produce their own organic compounds (food).
  4. 7. An electron carrier that transfers some of the energy absorbed from the sun in the light reactions to the Calvin cycle for sugar synthesis.
  5. 8. The organic compounds produced by photosynthesis.
  6. 9. Sac-like membranes that are organized into stacks called grana.
Down
  1. 1. another way autotrophs make food. In this case, the autotrophic organisms use chemical energy instead of light energy.
  2. 5. The ability to do work. Photosynthetic organ-isms harness light energy from the sun to produce chemical energy stored in sugars.
  3. 6. Organelles where photosynthesis takes place