NEET : Multiple Choice question: Development of Endosperm and Structure of Embryo

 1. Which of the following post fertilization event took place at first than other.

A. Development of embryo from zygote 

B. Development of Endosperm from Primary Endosperm nucleus

C. Development of seed from ovule

D. Development of fruit from ovary 

Answer : C Explanation 

2. How many statements is / are correct about the post fertilization events in flowering plant.

1. Development of endosperm take place after the development of embryo.

2. After fertilisation, Antipodal cell, and synergid are remain present in embryosac.

3. Embryo develops at chalazal end of embryo sac.

A. One    B. Two

C. Three  D. None

Answer : D Explanation 

3. Which one of the following statement is not correct.

A. Cells of endosperm tissue are filled with reserve food and provide nutrition of developing embryo.

B. Primary endosperm nucleus divided repeatedly and form free nuclei.

C. Endosperm become cellular before the the formation of free nuclear endosperm. 

D. The coconut tender or liquid is free nuclear endosperm and White kernel is cellular endosperm.

Answer : C Explanation 

4. In which of the following plant, Endosperm is completely consumed by developing embryo.

A. Pea

B.Ground nut

C. Bean

D. All of the above

Answer: D Explanation 

5. Endospermic seed have remain of endosperm because endosperm is not completely used during developing embryo, endospermic seed present in

A. Pea and Bean

B. Pea and Groundnut

C. Castor and Coconut 

D.Groundnut and Coconut 

Answer : C Explanation 

6. Embryo develops at which endo of embryosac.

A. Micropyle end

B.  Chalazal end

C. Near polar nuclei

D.Either micropyle or chalazal end.

Answer: B Explanation 

7. Which one the following is an adaptation during embryo development.

A. Early stage of embryo development is similar in both Monocotyledons and Dicotyledons.

B. To ensure  nutrition for developing embryo after the formation of endosperm

C. In both monocotyledons and Dicotyledons , zygote give rise to Proembryo, globular shape, heart shaped than mature embryo.

D. Cellurisation of endosperm after the  formation of free nuclear endosperm. 

Answer: B Explanation 

8. Arrange the following stage of embryogeny chronologically

1. Proembryo 

2. Heart shaped

3. Globular embryo

4. Mature embryo

A. 1,3,2 4   B.1,3, 2,4

C. 1,4,3,2   D. 1,4 2,3

Answer :B Explanation 

9. Consider the following diagram and Predict A , B C and D

A.  Radicle , Plumule, Suspensor,Cotyledons 

B. Suspensor, Radicle, Plumule, Cotyledons 

C. Plumule, Radicle, Suspensor, cotyledons

D.Cotyledons, plumule, Radicle, Suspendor

Answer : B

10. Which of the following statement is  correct about the structure of Dicotyledons embryo.

A.  This contain an embryonal axis and one cotyledon.

B. The portion of embryonal axis above the cotyledons is called as Hypocotyl.

C. The portion of embryonal axis above the cotyledons is called as Epicotyl.

D. Epicotyl terminates at plumule whereas Hypocotyl ends at Radicle or root tip.

Answer : D Explanation 

11. Which of the following statement is not correct about the structure of Dicotyledons embryo.

A. The portion of above of cotyledons is called Epicotyl.

B. The portion of below of cotyledons is called Hypocotyl.

C. The root tip is covered with root cap.

D. Hypcotyl terminates at plumule whereas Epicotyl ends at Radicle or root tip.

Answer : D Explanation 

12. Which of the following pair is correctly matched.

A. Part above the cotyledon : Hypocotyl

B. Part below the 

cotyledon : Epicotyl 

C. Hypocotyl ends at: radicle

D.Epicotyl ends at: Root tip

Answer: D Explanation 

13. Which of the following structure of Monocot embryo is located towards lateral side of embryonal axis.

A. Scutellum

B. Epicotyl

C. Hypocotyl

D. Plumule

Answer: A Explanation 

14. A sheath which enclose radicle and root cap in monocot embryo located at Hypcotyl, called 

A. Coleoptile

B. Coleorrhiza

C. Scutellum

D. Plumule

Answer: B Explanation 

15.  Which of the following statement is not correct about Coleoptile.

A. It is located at Epicotyl.

B. It has a foliar structure which enclose shoot apex.

C. Coleoptile enclose leaf primordia. 

D. Coleoptile is located at lateral end of radicle 

Answer: D Explanation 

16. Consider the diagram of  L.S of monocot  embryo and label the A,B,C,D

   

A. Scutellum,Coleoptile, Epiblast, Coleorrhiza

B. Coleorrhiza, scutellum, Epiblast, Coleoptile

C. Scutellum, Coleorrhiza, Epiblast,Coleoptile

D. Coleorrhiza, Coleoptile, Epiblast Scutellum,

Answer: A

17. Consider the following Diagram and identify 1 ,  and 3

 

A. Plumule and  Radicle

B. Epicotyl and Hypocotyl

C. Shoot tip and Root tip

D.Epicotyl and  Radicle

Answer : A