Photosynthesis

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Across
  1. 2. Where Photosynthesis takes place.
  2. 5. depending on free oxygen or air
  3. 8. the totality of surrounding conditions
  4. 10. green pigments found in photosynthetic organisms
Down
  1. 1. he simplest structural unit of an element
  2. 3. a colorless, odorless gas that is essential for respiration
  3. 4. dioxide colorless gas formed during respiration
  4. 6. Specialized part of a cell
  5. 7. a monosaccharide sugar
  6. 9. any organism of microscopic size