Increasing Crop Yield

123456789101112131415
Across
  1. 2. Equipment to increase the temperature in a glasshouse.
  2. 5. A mineral ion needed to make chlorophyll in chloroplasts.
  3. 6. Biological catalysts.
  4. 10. The process of altering the genetics of an organism by introducing a gene from another species.
  5. 11. A soluble mineral ion needed to make DNA, amino acids and proteins.
  6. 12. Required for growth in plants. Includes potassium and phosphate ions.
  7. 14. A gas required as a reactant for photosynthesis.
  8. 15. A system used in a glasshouse to water plants.
Down
  1. 1. An organism which contains DNA from two different species.
  2. 3. The rate of photosynthesis is determined by the _________ factor.
  3. 4. Large plastic tunnels that cover crops to increase the temperature and prevent the entry of pests.
  4. 7. When the active site of an enzyme alters shape so the enzyme can no longer catalyse the reaction.
  5. 8. A factor which affects enzyme activity and the rate of photosynthesis.
  6. 9. A measure of how much crop is produced.
  7. 13. The temperature at which an enzyme functions at its highest rate.