MCQ ON STRUCTURE OF DICOTYLEDONOUS SEED/ STRUCTURE OF MONOCOTYLEDONOUS SEED class 11 for NEET

MCQ ON STRUCTURE OF DICOTYLEDONOUS SEED/ STRUCTURE OF MONOCOTYLEDONOUS SEED class 11 for NEET | STRUCTURE OF DICOTYLEDONOUS SEED/ STRUCTURE OF MONOCOTYLEDONOUS SEED class 11| MCQ STRUCTURE OF DICOTYLEDONOUS SEED/ STRUCTURE OF MONOCOTYLEDONOUS SEED with Answer | Check the below NCERT MCQ question for class 11Biology based on the with Answers.

MCQ on STRUCTURE OF DICOTYLEDONOUS SEED/ STRUCTURE OF MONOCOTYLEDONOUS SEED class 11Biology with answers were prepared based on the latest pattern.We have provided class 11 Biology MCQs question with Answers to help students understand the concept very well.

MCQ ON STRUCTURE OF DICOTYLEDONOUS SEED/ STRUCTURE OF MONOCOTYLEDONOUS SEED class 11 for NEET

MCQ ON STRUCTURE OF DICOTYLEDONOUS SEED/ STRUCTURE OF DICOTYLEDONOUS SEED is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM/ KVS PGT BIOLOGY / NVS PGT BIOLOGY EXAM 2023-2024 ,2025

INTRODUCTION:-
STRUCTURE OF DICOTYLEDONOUS SEED:-
The outermost covering of seed is the seed coat.
The seed coat has two layers, the outer testa and the inner tagment.
The hilum is a scar on the seed coat through which the developing seeds were attached to the fruit. Above the Hilum is a small pore called the micropyle.

Within the seed coat is the embryo , consisting of an embryonal axis and two cotyledons.
The cotyledons are often fleshy and full of reserve food materials.

At the two ends of the embryonal axis are present the radicle and the plumule .

In some seeds such as castor the endosperm formed as a result of double fertilisation is good storing tissue.
In plants such as the endosperm is not present in mature seeds and such seeds are called non-endospermous.

STRUCTURE OF MONOCOTYLEDONOUS SEED :-
Generally , monocotyledonous seeds are endospermic but some as in orchids are non-endospermic .

In the seed of cereals such as the maize the seed coat is membranous and generally fused with fruit wall.

The endosperm is bulky and store food . The outer covering of endosperm separates the embryo by a proteineous layer called aleurone layer.

The embryo is small and situated in a groove at the one end of the endosperm.
It consist of one large and shield shaped cotyledon known as scutellum and a short axis with a plumule and a radicle.
The plumule and radicle are enclosed in sheath which are called Coleoptiles and coleorhiza respectively.

MCQ STRUCTURE OF MONOCOTYLEDONOUS SEED/ STRUCTURE OF DICOTYLEDONOUS SEED class 11 for NEET/KVS PGT BIOLOGY / NVS PGT BIOLOGY EXAM 2023-2024,2025

1. The outermost covering of seed is the

(a) seed coat
(b) testa
(c) tegmen
(d) hilum

Ans (a) seed coat

2. The seed coat has two layers, the outer and the inner is

(a) testa and tegmen
(b) tegmen and testa
(c) micropyle and hilum
(d) chalaza and endosperm

Ans. (a) testa and tegmen

3. The scar on the seed coat through which the developing seeds were attached to the fruit .

(a) hilum
(b) testa
(c) tegmen
(d) chalaza

Ans. (a) hilum

4.Above the Hilum is a small pore called the

(a) tegmen
(b) micropyle
(c) chalaza
(d) Hilum

Ans.(b) micropyle

5. Within the seed coat is the embryo consisting of an embryonal axis and two cotyledons.The cotyledons are often fleshy and full of reserve food materials.At the two ends of the embryonal axis are present the

(a) radicle and plumule
(b) Cortex band parecycle
(c) companion cells and plumule
(d) subsidiary cells and plumule

Ans.(a) radicle and plumule

6. Which is endospermic seed ?

(a) castor
(b) bean
(c) gram
(d) pea

Ans.(a) castor

7. Which are non endospermic seed ?

(a) bean
(b) gram
(c) pea
(d) all the above

Ans.(d) all the above

8.Endosperm is formed as a result of

(a) double fertilisation
(b) mono fertilisation
(c) triple fertilisation
(d) all the above

Ans.(a) double fertilisation

9. The outer covering of endosperm separates the embryo by a proteineous layer called

(a) aleuron layer
(b) plumule
(c) Starchy sheath
(d) none of the above

Ans. (a) aleurone layer

10. The embryo is small and situated in groove at one end of endosperm monocotyledonous seed.It consists of one large and shield shaped cotyledons known as

(a) cellulose
(b) scutellum
(c) pectin
(d) all the above

Ans. (b) scutellum

11. The plumule are enclosed in sheaths which are

(a) parenchyma
(b) Collenchyma
(c) coleoptiles
(d) none of these

Ans.(c) Coleoptiles

12. The radicle is enclosed in sheaths are known as

a) Coleoptiles
b) Collenchyma
c) coleorhiza
(d) all the above

Ans . (c) Coleorhiza

13.Monocotyledonous seed which is non-endospermic

(a) gram
(b) maize
(c) pea
(d) orchids

Ans.(d) orchids

14. Which is /are monocotyledonous seeds ?