Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Sexual Reproduction in Flowering Plants

Question:

Which among the following statements are correct :

(A) Albuminous seeds retain a part of endosperm as it is not completely used up during embryo development

(B)  Wheat, maize, barley, castor are examples of non-albuminous seeds.

(C) In black pepper and beet, remnants of nucellus are persistent i.e pericarp .

(D) The embryo may enter a state of inactivity called dormancy.

Choose the correct answer from the given options .

Options:

A and C only 

A , B and C only 

A and D only 

A, B and D only 

Correct Answer:

A and D only 

Explanation:

The correct option is 3 . A and D only .

(A) Albuminous seeds retain a part of endosperm as it is not completely used up during embryo development

(D) The embryo may enter a state of inactivity called dormancy.

Albuminous seeds retain a part of endosperm as it is not completely used up during embryo development  (e.g., wheat, maize, barley, castor).

Occasionally, in some seeds such as black pepper and beet, remnants of nucellus are also persistent. This residual, persistent nucellus is the perisperm.

As the seed matures, its water content is reduced and seeds become relatively dry (10-15 per cent moisture by mass). The general metabolic activity of the embryo slows down. The embryo may enter a state of inactivity called dormancy, or if favourable conditions are available (adequate moisture, oxygen and suitable temperature), they germinate .