Across
- 7. the green pigment in plants that absorbs light energy
- 8. a factor that encourages transpiration as it stimulates guard cells to open
- 9. a device used to measure the rate of transpiration
- 11. the gas produced in photosynthesis
- 13. a mineral ion needed for making proteins
- 17. a strong wood like substance in the xylem walls that give strength
- 18. a factor that affects that rate of water loss (transpiration) by affecting the kinetic energy of particles
- 19. an adaptation of the xylem to enable uninterrupted flow of water
- 20. these give the spongy layer its 'spongy' quality
- 21. the tissue that covers plant organs
- 22. a mineral ion needed for making chlorophyll
- 23. a factor that affects the rate of transpiration
Down
- 1. the term for the way gases move in and out of a plant
- 2. the tissue that is the site of most photosynthesis
- 3. a tissue that carries sugar in a plant
- 4. the palisade cells are packed with these photosynthetic organelles
- 5. a gas used in photosynthesis
- 6. pores on the leaf where gas exchange occurs
- 10. the term for the movement of sugars through a plant
- 12. a tissue that carries water and minerals in a plant
- 14. a factor that affects transpiration, a term for the moisture content of the air
- 15. these specialised cells regulate the opening of the stomata
- 16. the tissue the provides the plant with stem cells
- 18. the loss of water by evaporation through the stomata
