Across
- 2. a pair of cells that surround the stoma on a leaf
- 4. a layer of thick protective cells covering the end of a growing root
- 7. a tiny package of chlorophyll within a plant cell
- 10. a type of sugar that plants need to live
- 11. a complex chemical process by which green plants use the energy of sunlight to change water and carbon dioxide into glucose for food
- 12. the part of of a plant that is below the ground
- 13. a tough, fibrous material made from glucose that is used to make the cell walls of plant cells
- 14. holes or pores located on the under side of a leaf where air enters the leaf
Down
- 1. the pigment, or coloring, that makes plants green and helps carry out photosynthesis
- 3. the growth of a plant in response to a condition in its environment, such as gravity, water, light, or touch
- 5. a single main root of a plant that penetrates deeply into the ground
- 6. a tiny projection near the end of a root that finds water and dissolved minerals in the soil
- 8. the part of a plant that is visible above the ground
- 9. the waxy covering that coats the skin of a leaf and prevents water from escaping
- 15. a large vein that runs up the middle of the leaf