NEET BIOLOGY

Detailed explanation-1: -cotyledon, seed leaf within the embryo of a seed. Cotyledons help supply the nutrition a plant embryo needs to germinate and become established as a photosynthetic organism and may themselves be a source of nutritional reserves or may aid the embryo in metabolizing nutrition stored elsewhere in the seed.

Detailed explanation-2: -Cotyledon is a significant part of plant embryo within the seed. It stores food materials that are supplied to the seeds at the time of germination. After germination the cotyledons become the first leaf of the seedling. When the seedling grows into a small plant with new leaves, the cotyledon dries up and shed down.

Detailed explanation-3: -They contain reserve food material that provides nourishment to the developing seedling. The function of Cotyledons is to store food for the growing embryo.

Detailed explanation-4: -The aleurone layer is the outermost layer of the endosperm in a monocot seed and is proteinaceous in nature. It provides nourishment to the growing embryo of the seed.

Detailed explanation-5: -Either the nutrients surround the embryo in a tissue known as endosperm, as in a corn seed, or the nutrients are stored in leaf-like structures known as a cotyledons which are part of the embryo, as in bean seeds.