Question

Name 2 structures of the complex tissue that are absent in Gymnosperms.

Answer 1

Gymnosperms:

1. Gymnosperms are known as non-flowering plants.
2. These produce naked seeds.
3. This group includes conifers, climbers and herbs.
4. Gymnosperms are included in tracheophytes because these have vascular systems.
5. Gymnosperms lack companion cells and sieve tubes.
6. Both kinds of cells are the components of phloem
7. Phloem is a complex tissue because it consists of many types of cells: sieve tube, companion cells, phloem fibre and phloem parenchyma.
8. Both xylem and phloem are complex tissues.