Transpiration

4. A gas needed by plants for photosynthesis
5. The amount of moisture in the air
7. Tissue responsible for transporting water upwards in plants
9. The process by which plants convert light energy into chemical energy
10. A gas released by plants during photosynthesis
12. A layer of tightly packed cells in the leaf containing lots of chloroplasts, carry out most photosynthesis
14. The energy that particles have due to their motion
16. The movement of air, effects transpiration rates
17. Pores on the surface of leaves that regulate gas exchange

1. A leaf tissue that has air spaces for gas exchange
2. Tissue responsible for transporting sugars and nutrients in plants
3. The speed at which a process occurs
6. The measure of heat, effects transpiration rates
8. The movement of sugars and nutrients through a plant
11. The substance that plants take up from the soil, needed in photosynthesis
13. The amount of light
15. The loss of water vapour from plant leaves via the stomata