Question

Define albuminous and nonalbuminous seed with example

Answer 1

Seeds that possess a special food storage tissue called the endosperm are said to be albuminous and those which have no such tissue for storage are said to be exalbuminous or non-endospermic. In albuminous seeds food is being stored in endosperm the cotyledons are small and thin while on.

Albuminous seeds are the seeds which have food stored in the special nourishing tissue called as endosperm that remains persistent till maturity. Cotyledons only act as food sucking organs and not food storage organs.e.g. Castor seed.

Answer 2

Answer:

Albuminous ( endospermic)

In such seeds, cotyledons are thin and membranous and endosperm persists.

Examples

Monocot Albuminous seeds : cereals, millets, palm.

Dicot Albuminous seeds : poppy, custard apple.

Non-Albuminous ( exalbuminous, non-endospermic)

In such seeds, the cotyledon store food and becomes thick and fleshy.

Examples

Monocot non-Albuminous seeds : Vallisneria, orchids, amorphophallus.

Dicot non-Albuminous seeds : gram, pea, mango, mustard.