Across
- 4. thick, tough secondary walls impregnated with lignin
- 7. conducts dissolved food materials produced by photosynthesis.
- 8. tissues responsible for secondary growth
Down
- 1. Tissue only meant for growth
- 2. chief conducting tissue of water and minerals.
- 3. most abundant of the cell types found in the major parts of higher plants.
- 5. Certain cells associated with sieve tube
- 6. outermost layer of cells