Unit 7 photosynthesis

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Across
  1. 3. in the atmosphere is a result of photosythesis.
  2. 8. is very important, without it, photosynthesis cant happen.
  3. 10. means putting together.
  4. 11. are also known as producers, they provide food for many other organisms.
  5. 12. plants are the only ones that can do photosynthesis.
Down
  1. 1. organisms use light energy to make sugar and oxygen gas from carbon dioxide and water.
  2. 2. control the size of the stomata.
  3. 4. is a waste product.
  4. 5. is a plant cell that has a green chemical "chlorophyll" inside it.
  5. 6. comes from the Greek language.
  6. 7. is a useful product for plants.
  7. 9. means light in the Greek language.