Osmosis And Diffusion Report

The embryo is an immature plant from which a new plant will grow under proper conditions. The embryo has one cotyledon or seed leaf in monocotyledons, two cotyledons in almost all dicotyledons and two or more in gymnosperms. The radicle is the embryonic root. The plumule is the embryonic shoot. The embryonic stem above the point of attachment of the cotyledon is the epicotyl. The embryonic stem below the point of attachment is the hypocotyl. Next we learned about seed germination.

Seed germination is the process of growth of the embryo into a functional plant. It involves the reactivation of the metabolic pathways that lead to growth and the emergence of the radicle or seed root and plumule or shoot. Three conditions must exist before germination can occur. The embryo must be alive, called seed viability. Any dormancy requirements that prevent germination must be overcome, and the proper environmental conditions must exist in order to have germination occur. Osmosis is associated with seed germination because water osmoses into the seed and the young plant in order for it to germinate.

Enzymes are biological catalysts. They speed up chemical reactions that otherwise would be too slow to sustain the balance of life. In seed germination, enzymes speed up the chemical reactions to make the seedling sprout from the seed coat. Also, enzymes cause the amounts of glucose in the sprouts to differ from the amounts of glucose in the seeds.

BIBLIOGRAPHY.

Wikipedia: www.en.wikipedia.org/wiki/seed.htm