Across
- 1. provide flexible support for growing and mature plant organs extra primary wall in the corners
- 5. tissue only meant for growth
- 7. pair of cells that border stomata
- 9. thick, tough secondary walls impregnated with lignin
- 10. conducts dissolved food materials produced by
- 12. tubes with pits rather than openings at the ends
Down
- 2. component of the waxy outer coating of aquatic plant leaves
- 3. certain cells associated with sieve tube
- 4. most abundant of the cell types found in the major parts of higher plants
- 6. parenchyma tissue with connected air spaces
- 8. chief conducting tissue of water and minerals
- 11. Outermost layer of cells