Question

Как образуется эндосперм

Answer 1

Второй спермий сливается с крупной центральной клеткой. из неё образуется ткань эндосперм

Answer 2

Formation of Endosperm

The formation of endosperm is a crucial process in the development of seeds in flowering plants. Endosperm is a tissue that provides nourishment to the developing embryo and is formed as a result of double fertilization.

In flowering plants, the process of endosperm formation begins with the fusion of a male gamete with two polar nuclei in the embryo sac. This process is known as double fertilization and leads to the formation of a triploid cell, which develops into the endosperm.

The endosperm can be formed through different mechanisms, including nuclear-type endosperm and cellular-type endosperm. In nuclear-type endosperm, the primary endosperm nucleus undergoes repeated divisions without cytokinesis, resulting in the formation of a multinucleate endosperm. On the other hand, cellular-type endosperm involves the formation of distinct cells within the endosperm tissue.

The formation of endosperm is essential for the successful development of seeds in flowering plants, as it provides the necessary nutrients for the growing embryo.

The process of endosperm formation is a complex and intricate aspect of plant reproduction, playing a critical role in the development and viability of seeds.