Across
- 1. A protective, waxy or hard layer covering the epidermis of a plant.
- 4. The non-living pathway made of interconnected cell walls extending throughout the plant.
- 6. The transport of assimilates through a plant, in phloem tissue.
- 11. A complex organic polymer deposited in the cell walls of many plants, making them rigid and woody.
- 13. The internal tissue of a leaf blade with chloroplasts for photosynthesis.
- 15. Pores in the epidermis of a leaf, bounded by two guard cells and needed for efficient gas exchange.
- 16. Plants adapted to survive in conditions where water is in short supply.
- 17. A flowering plant with an embryo that bears a single seed leaf.
- 19. A flowering plant with an embryo that bears two seed leaves.
- 20. Tissue containing xylem vessel elements and other types of cells, responsible for the transport of water through a plant.
Down
- 2. The loss of water vapor from a plant to its environment by diffusion down a water potential gradient.
- 3. A basic plant tissue typically used as packing tissue between more specialized structures; it is metabolically active and may have a variety of functions such as food storage, support, and transport via symplast and apoplast pathways.
- 5. The upper layer of mesophyll.
- 7. The living pathway made of interconnecting protoplasts extending throughout the plant
- 8. An area in which sucrose is loaded into the phloem (e.g. a photosynthesizing leaf)
- 9. A modified form of parenchyma in which the corners of the cells have extra cellulose thickening, providing extra support.
- 10. Tissue containing sieve tubes and other types of cells, responsible for the translocation of assimilates such as sucrose through a plant.
- 12. Strengthening tissue in a plant, formed from cells with thickened (typically lignified) walls.
- 14. The lower layer of mesophyll.
- 18. An area in which sucrose is taken out of the phloem (e.g. roots)