Photosynthesis

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Across
  1. 2. The green pigment in leaves that absorbs light (9)
  2. 4. The energy source required for photosynthesis (5)
  3. 5. released as a by-product of photosynthesis (6)
  4. 7. Gas taken in by plants during photosynthesis (6)
Down
  1. 1. Process by which plants make their food (14)
  2. 3. 2. Tiny openings on leaves for gas exchange (8)
  3. 6. The product of photosynthesis that is a type of sugar (7)