The primary function of the endosperm in the sexual reproduction of flowering plants is to provide nutrition and support for the developing embryo within the seed. The endosperm is a tissue that surrounds and nourishes the embryo, supplying the necessary nutrients, such as carbohydrates, proteins, and lipids, for its growth and development. As the embryo grows, it absorbs nutrients from the endosperm until it is mature enough to germinate and establish itself as a new plant. Additionally, the endosperm plays a role in seed dispersal and germination by providing energy reserves for the developing seedling.
