NEET BIOLOGY

Detailed explanation-1: -Answer: There are three parts of a plant seed, namely seed coat, endosperm and embryo. Seed coat protects the seed from physical, mechanical, temperature-related and water damage. Cotyledon is an embryonic leaf present within the seed of a plant.

Detailed explanation-2: -The seed is the embryonic stage of the plant life cycle. Most seeds consist of three parts: embryo, endosperm, and seed coat. The embryo is a tiny plant that has a root, a stem, and one or more leaves.

Detailed explanation-3: -As an embryo develops, a single fertilized cell progresses through multiple rounds of cell division. Eventually, the clump of cells goes through a stage called gastrulation, during which the embryo reorganizes itself into the three germ layers: endoderm, ectoderm, and mesoderm.

Detailed explanation-4: -The embryo is the most important part of a seed. It is diploid, developed from the fertilized egg. All the cells that need to develop into a mature embryo are present within the embryo.

Detailed explanation-5: -There are three major stages in the germination process. These are the imbibition of water, increased metabolic activity, and swelling of cells. Germination begins with the seed’s imbibition (absorption) of water.