NEET BIOLOGY

Detailed explanation-1: -The seed consists of three components: embryo, endosperm (sometimes perisperm), and seed-coat. Both endosperm and embryo are the products of double fertilization, whereas the seed-coat develops from the maternal, ovular tissues. The seed habit is a significant advancement in the evolution of higher plants.

Detailed explanation-2: -A seed is made up of a seed coat and an embryo. The embryo is made up of a radicle, an embryonal axis and one (wheat, maize) or two cotyledons (gram and pea). A seed is found inside a fruit which converts into a new plant when we plant it. Hence, the seed is the most important part.

Detailed explanation-3: -The mature embryo consists of an embryonic root known as the radicle, an embryonic shoot, and one or two cotyledons. The embryonic shoot, known as the plumule, has two main parts, the epicotyl and the hypocotyl.

Detailed explanation-4: -A fertilized ovule develops into a seed. Seed has the embryo within it which contains a plumule and radicle. Embryo is formed from the zygote which is formed when the egg is fertilized by the male gamete. Plumule and the radicle develops into a shoot and the root, respectively.

Detailed explanation-5: -Thus, a seed is an embryo and stored food enclosed in a seed coat. The development of a seed, also known as the ripening of an ovule, involves three distinct developmental processes: The development of a zygote into an embryo.