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