EAMCET Botany Important Questions and Answers

1. Which of the following layer of anther wall is characterised by the presence of hygroscopic fibrous thickenings
1. Epidermis 2. Endothecium 3. Middle layers 4. Tapetum.

2. The chemical substance present in endosporium of pollen grain is
1. Cellulose 2. Sporopollenin 3. Pecto-cellulose 4. Ligno-suberin

3. Microspore mother cells are formed from one of the following tissue.
1. Nucellus 2. Connective tissue
3. Megasporangium 4. Sporogenous tissue

4. The first cell of the Sporophytic plant body is
1. Gamete 2. Microspore mother cell 3. Female Gemetophyte 4. Zygote

5. The diploid nutritive tissue of the integumented - megasporangia of phanerogams is called
1. Nucellus 2. Endothecium 3. Tapetum 4. Endosperm

6. In anatropous ovule, the funicules extend beyond the hilum region is called.
1. Chalaza 2. Raphe 3. Synergids 4. Antipodals

7. The monosporic type of embryosac is common in angiosperms, and it is -
1. Eight nucleated and eight celled
2. Seven nucleated and seven celled
3. Eight nucleated and seven celled
4. Seven nucleated and eight celled

8. Choose the correct statement from the following.
1. The posterior part of the ovule is called micropylar end
2. Synergids are present in central cell of the embryo sac
3. The antipodals are regarded as the vegetative cells of the embryo sac.
4. The two polar nuclei fuse to form a primary endosperm nucleus.

9. The point of attachment of the body of the ovule to its stalk is called.
1. Raphe 2. Caruncle 3. Micropyle 4. Hilum

10. The largest cell of the embryo sac is
1. Aril 2. Synergids 3. Central Cell 4. Antipodals

11. In which of the following genera embryosac develops from two megaspores.
1. Opuntia 2. Polygonum 3. Plumbago 4. Allium

12. Ategmic ovules are found in one of the following pair.
1. Ranunculus and Primula
2. Opuntia and Plumbago
3. Loranthus and Balenophora
4. Primula and plumbago

13. Which of the following structure help in absorption and conduction of food materials from nucellues into the embryosac.
1. Antipodals 2. Filiform aparatus 3. Micropyle 4. Raphe

14. The 'Polygonum type' embryo sac development was first studied by
1. Strasberger 2. Treub 3. Nawaschin 4. P.Maheswari

15. Assertion (A): Monosporic embryosac development is seen in
Reason (R): Monosporic type of embryo sac develops from all 4 haploid nuclei of a megaspore mother cell.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true and R is not the correct explanation of A.
3. A is true but R is false
4. A is false but R is true.

16. The edible part of Coffee Seed is
1. Tapetum 2. Perisperm 3. Mace 4. Caruncle

17. Assertion (A): In gymnosperms endosperm is in haploid (n) condition
Reason (R): In gymnosperms the female gametophyte which is formed before fertilization acts as endosperm.
1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true and R is not the correct explonation of A
3. A is true but R is false
4. A is false but R is true

18. The large, single, shield shaped Cotyledon of cereals is called
1. Tegellum 2. Scutellum 3. Aril 4. Caruncle

19. Study the following lists
List-1 List-2
A. Orthrotropous ovule I. Cucurbita
B. Caruncle II. Ottelia
C. Porogamy III. Ricinus Communis
D. Epigeal germination IV. Polygonum V. Myristica
The correct match is:
1. A-III, B-II, C-I, D-V
2. A-V, B-I, C-II, D-III
3. A-IV, B-III, C-II, D-I
4. A-II, B-I, C-V, D-III

20. Study the following Lists.
List-1 List-2
A. Circinotropous Ovule I. Casuarina
B. Aril II. Rhizophora
C. Chalazogamy III. Pithecalobium
D. Vivipary IV. Opuntia V. Primula
The Correct match is:
1. A-III, B-V, C-II, D-IV
2. A-IV, B-III, C-I, D-II
3. A-I, B-IV, C-V, D-III
4. A-III, B-V, C-IV, D-I

KEY : 1.2 2.3 3.4 4.4 5.1 6.2 7.3 8.3 9.4 10.3 11.4 12.3 13.2 14.1 15.3 16.2 17.1 18.2 19.3 20.2

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