Final answer:
The seed creates a seed coat during maturation by utilizing the endosperm, which acts as a food reserve for the growing embryo, eventually being absorbed into the cotyledons.
Step-by-step explanation:
During maturation:
The seed is creating a seed coat by using up the endosperm. This process is part of the transition from an ovule to a mature seed, involving several key structures and functions. A typical seed is composed of an embryo, endosperm, cotyledons, and a seed coat, each contributing to the future success of the plant.
The endosperm functions as a food reserve, supporting the developing embryo. Early in seed development, this tissue proliferates in a free-nuclear stage, later forming cellular structure. In many plants, the endosperm may be completely absorbed by the growing embryo and its cotyledons during maturation
The formation of the seed coat from integuments provides a protective layer for the embryo, further aiding in the seed's durability in the environment. The transformation of endosperm into the seed coat and other significant changes occur as part of the seed's development, contributing to the successful dispersion and germination of the seed.