Question

Do gymnosperms have endosperm?

Answer 1

Gymnosperm:

Unlike angiosperms, or flowering plants, whose seeds are enclosed by fully developed ovaries, or fruits, gymnosperms, or any vascular plant, reproduce by the use of an exposed seed, or ovule.

Endosperm:

1. After double fertilization, the endosperm is a tissue generated inside the seeds of most flowering plants.
2. The nutrient source for embryo growth is the endosperm.
3. Gymnosperms lack true endosperm.
4. There is no evidence of multiple fertilization.
5. One of the two sperm nuclei degenerates, resulting in the absence of a true endosperm.
6. On the other hand, the tissue providing nutrition is needed for the embryo to grow and germinate.
7. Naked seed is the name given to gymnosperms.
8. These are seed-bearing plants that produce seeds instead of fruits.
9. They form a cone-like structure on the surface of leaves or scales as well as at the end of the stalk.
10. In these plants, eggs are not present in the ovary wall.
11. They remain exposed after fertilization, as well as before they develop into seeds.
12. They have naked seeds that do not develop inside the fruit. The endosperm in their seeds stores food for their growth and development.
13. They have a sporophyte-dominant cycle and reproduce through generational alternation.
14. Gymnosperms include Cycas, Larix, Pinus, Thuja, Cedrus, Araucaria, Picea and others.