Photosynthesis

3. This is released as a by-product
5. Facilitates the reaction
8. Makes glucose using light
9. Some of the glucose is used by the plant to produce this and oil for storage
13. Allow farmers to control the light levels
16. A shortage of this means there is less energy to power the reaction
19. Plants cells use some of the glucose produced during photosynthesis for this.
20. The cells photosynthesis mainly occurs in

1. Strengthens cell walls
2. Farmers use these and polythene tubes to maipulate the environment in which they grow their plants
4. A green substance that absorbs light energy
6. When glucose is produced in photosynthesis it may be converted to this for storage
7. Where chlorophyll is found
10. Manipulating the conditions for plant growth means that they can grow certain crops all year an example is.
11. Farmers increase there BLANK by manipulating plant growth
12. Farmers can BLANK increase the carbon dioxide levels
14. The main site for photosynthesis
15. A shortage of this will limit the rate as fewer molecules will be available for the reaction
17. If this is low then the rate will be limited as the molecules will move slower
18. Plants absorb these from the soil to produce proteins