Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Sexual Reproduction in Flowering Plants

Question:

Which of the following statements are correct :

(A) In angiosperms, the seed is not the final product of sexual reproduction.

(B) Seed is often described as a fertilised ovule.

(C) A seed typically consists of seed coat(s), cotyledon(s) and an embryo axis.

(D) Albuminous seeds have no residual endosperm as it is completely consumed during embryo development (e.g., pea, groundnut). 

(E) Persistent nucellus is the perisperm. 

Options:

A,B, C and E only .

B,C,D and E only .

B, C and E only.

A,B and E only 

Correct Answer:

B, C and E only.

Explanation:

The correct answer is Option (3) -B, C and E only.

In angiosperms, the seed is the final product of sexual reproduction. It is often described as a fertilised ovule. 

Seeds are formed inside fruits. A seed typically consists of seed coat(s), cotyledon(s) and an embryo axis. The cotyledons  of the embryo are simple structures, generally thick and swollen due to storage of food reserves (as in legumes)

Mature seeds may be non-albuminous or ex-albuminous. Non-albuminous seeds have no residual endosperm as it is completely consumed during embryo development (e.g., pea, groundnut). 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.