Question

Why does endosperm development precede embryo development in angiosperm seeds? State the role of endosperm in mature albuminous seeds.

Hint:

The endosperm is crucial in monocots like cereals, where it persists and provides energy during germination.

Answer 1

Endosperm development precedes embryo development in angiosperm seeds to provide the necessary nutrients for the developing embryo. The endosperm stores and supplies food materials to support the initial stages of embryo growth. - Endosperm forms after the fusion of one sperm nucleus with two polar nuclei, ensuring the availability of nutrients for the zygote. - In albuminous seeds, such as wheat and maize, the endosperm persists in the mature seed and acts as a storage tissue for nutrients, including starch, proteins, and oils, required for seed germination and growth.