Give structural differences between xylem vessels and phloem sieve tubes.
Give structural differences between xylem vessels and phloem sieve tubes.
| Xylem vessels | Phloem tissues |
| Are open ended with no cross walls | Cross walls perforated with pits found between cells |
| Cells are large and wide | Cells very small and narrow |
| Cells have pits in the walls | Pits occur only on the sieve plate |
| Cells are dead and contain no cytoplasm | Cells are living and contain cytoplasm |
| Form annular rings and sclereids | None is formed on the phloem |
| No companion cells | Have companion cells |
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CATEGORIES Bio Questions and answers
TAGS Dr. Bbosa Science
