Question

Name the parts of the ovule and the embryo sac of an angiosperm that develop into : 

(i) perisperm, 

(ii) seed coats, 

(iii) endosperm, 

(iv) embryonal axis

Answer 1

(i) Perisperm : Residual persistent nucellus. 

(ii) Seed coats : Integuments. 

(iii) Endosperm : Primary endosperm nucleus. 

(iv) Embryonal axis : Tigellum