Question

What changes occur during the transformation of the ovule into a seed?

Answer 1

After a successful act of fertilization and double fertilization, each ovule is transformed into the seed. The parts of ovule undergo morphological changes as follows: 

• Funicle – Stalk of seed 
• Micropyle – Gets sealed .
• Nucellus – Degenerates in most cases.
• Integuments – Seed coat, (outer integument-Testa and inner integument-Tegmen).
• Fertilized egg – Embryo.
• Primary endosperm nucleus – Endosperm (Present in albuminous seeds and not in exalbuminous seeds).
• Antipodals and synergids – Degenerate.