NEET BIOLOGY

Detailed explanation-1: -The cotyledons contain (or in the case of gymnosperms and monocotyledons, have access to) the stored food reserves of the seed. As these reserves are used up, the cotyledons may turn green and begin photosynthesis, or may wither as the first true leaves take over food production for the seedling.

Detailed explanation-2: -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-3: -The cotyledons of the dormant mustard embryo contain large amounts of fat serving as a source of energy and carbon during the early period of seedling development, which is characterised by a purely dissimilatory energy production.

Detailed explanation-4: -Cotyledons of seed are units to store reserve food in the form of fats and proteins which are used by young embryo after germination, during its initial growth as a seedling.