Q. In the monocotyledonous seeds, the endosperm is separated from the embryo by a distinct layer known as :

Q. In the monocotyledonous seeds, the endosperm is separated from the embryo by a distinct layer known as :

(a) Testa

(b) Aleurone layer

(c) Tegmen

(d) Scutellum

Solution:

Correct option : B 
In monocotyledonous seed, the covering of grain encloses two major parts, endosperm and embryo. In longitudinal section, the major portion of grain is occupied by a large starchy endosperm. It is surrounded by a special one-cell thick layer. Called aleurone layer. The cells of aleurone layer are filled with proteinaceous aleurone grains which play in important role at the time of germination.