NEET BIOLOGY

Detailed explanation-1: -The three primary parts of a seed are the embryo, endosperm, and seed coat. The embryo is the young multicellular organism before it emerges from the seed. The endosperm is a source of stored food, consisting primarily of starches. The seed coat consists of one or more protective layers that encase the seed.

Detailed explanation-2: -An endosperm provides food and nourishment to the developing plant embryo in angiosperms. An embryo is a part of the seed that develops into a new individual of the species. An endosperm occurs in angiosperms, while an embryo occurs in every multicellular organism that undergoes fertilisation.

Detailed explanation-3: -… three major portions: (1) the embryo or germ (including its sheaf, the scutellum) that produces the new plant, (2) the starchy endosperm, which serves as food for the germinating seed and forms the raw material of flour manufacture, and (3) various covering layers protecting the grain.