Gaseous exchange in plants

123456789
Across
  1. 2. it takes place for 24 hours in plants.
  2. 4. Photosynthesis take place here.
  3. 6. the synthesis and break down of the reaction.
  4. 8. respiration, little or no energy produced.
  5. 9. it produces in the result of respiration.
Down
  1. 1. the rate is higher during 13:00n to 15:00.
  2. 3. cells, pair of cells surrounds stoma.
  3. 5. they are present in the lower epidermis.
  4. 7. it is thin and broad.