Question

(a) Why does endosperm development precede embryo development in angiosperm seeds? State the role of endosperm in mature albuminous seeds.
(b) Describe with the help of three labelled diagrams the different embryonic stages that include mature embryo of dicot plants.

Answer 1

Answer:

a) Endosperm provides nourishment to the developing embryo thus, embryo development starts after an endosperm is formed. The main role of endosperm is to provide food for growing embryo.

b) The labelled diagram of the different embryonic stages in dicot plants is given below:

Answer 2

Answer:

A. Endosperm gives nourishment to the embryo and it gives food to the embryo