Endosperm development precedes embryo development. Why?

Question

Answer

Endosperm Development Precedes Embryo Development: Explained

Endosperm is a nutritive tissue that is present in the seeds of most angiosperms. It is formed as a result of the fusion of two polar nuclei with a sperm cell during double fertilization. Endosperm development precedes embryo development for several reasons.

Reasons why Endosperm Development Precedes Embryo Development

Provision of nutrients: Endosperm is a source of nutrients for the developing embryo. It provides carbohydrates, proteins, and lipids that are necessary for the growth and development of the embryo. The endosperm also serves as a storage tissue for reserves that the seedling will use during germination.

Protection of the embryo: The endosperm provides a protective layer around the embryo, shielding it from mechanical damage and desiccation. This is particularly important in seeds that are dispersed by wind or water, as they are exposed to harsh environmental conditions.

Regulation of embryo development: The endosperm plays a critical role in regulating embryo development. It produces hormones and other signaling molecules that control the timing and pattern of embryo growth. For example, the endosperm produces gibberellins, which stimulate embryo elongation and cell division.

Prevention of premature germination: Endosperm development precedes embryo development to prevent premature germination. If the embryo were to develop before the endosperm, it would consume all of the available nutrients and the seedling would not have enough reserves to survive.

In conclusion, endosperm development precedes embryo development for several reasons, including the provision of nutrients, protection of the embryo, regulation of embryo development, and prevention of premature germination. This ensures the successful development and survival of the seedling.

Answer

Its beacause  cells of endosperm provides nutrients to developing embrayo. Hope... it ... helps...

Similar Class 12 Doubts

Ubisch bodies are associated with the development of

Agamospermous embryo sac development from1) Pollen2) egg 3)ovum 4)megaspore mother cell?

Explain development of embryo in angiosperms.

Free nuclear division in an angiosperm takes place during

The coconut water from tender coconut is

Top Courses for Class 12

Suggested Free Tests

Related Content

Schools

Competitive Examinations

Quick Access Links

Technical Exams