EAMCET Botany Important Questions with Key

1. Study the following lists.
List I List II
(A) Lycopene I. Phaeophyceae
(B) α-Carotene II. Daucus Chillies
Fucoxanthin
(C) β-Carotene III. Tomato
(D) Capsanthin IV. Xanthophyceae V. Daucus
The correct match is
A B C D A B C D
1) I IV II V 2) II III V I
3) III I V II 4) III I IV II

2. The following pigments belong to a group of chemicals called terpenoids.
1) C40H56 2) C40H56O2
3) C55H72O5N4Mg, 4) C40H56O2, C40H56 C55H70O6N4Mg

3. Phytol is attached to the following part of Chlorophyll
1) 4th pyrole ring 2) Porphorin 3) 3rd pyrole ring 4) Mg

4. Lutein is-
1) Blue coloured pigment
2) Yellow coloured pigment
3) Brown coloured pigment
4) Orange coloured pigment

5. Aldehyde, Methyl groups are attached to the following chlorophyll types respectively-
1) 3rd carbon of 2nd pyrole ring of Chl-b, 2nd carbon of 3rd pyrole ring of Chl-a
2) 2nd carbon of 3rd pyrole ring of Chl-b, 2nd carbon of 2nd pyrole ring of Chl-a
3) 3rd carbon of 2nd pyrole ring of Chl-a, 3rd carbon of 2nd pyrole ring of Chl-b
4) 3rd carbon of 2nd pyrole ring of Chl-b, 3rd carbon of 2nd pyrole ring of Chl-a

6. Assertion (A): Carotenoids and Phycobilins constitute Accessory pigments.
Reason (R): These pigments trap the radiant energy and transfer to chlorophyll – a and chlorophyll – b.
1) Both (A) and (R) are true and (R) is the correct explanation of (A)
2) Both (A) and (R) are true but (R) is not the correct explanation of (A)
3) (A) is true, but (R) is false
4) (A) is false, but (R) is true

7. Environment (atmosphere) is cleaned by green plants during-
1) Day and Night 2) Day 3) Night 4) Never

8. Chlorophylls are protected by the following from photo oxidation or photo bleaching
1) Sunlight 2) Accessory pigments 3) Water 4) CO2

9. The equation regarding photosynthesis in Bacteria is-
1) 6CO2 + 12H2S → C6H12O6+6H2O+12S
2) 6CO2 + 12H2O → C6H12O6+6H2O+6O2
3) CO2 + H2S → 2S+CH2O+H2O
4) 6CO2 + 6H2S → C6H12O6+6H2O+6S

10. Photosynthesis is-
1) Anabolic, Reduction, Exergonic reaction
2) Anabolic, Oxdiation, Endergonic reaction
3) Anabolic, Reduction, Endergonic reaction
4) Catabolic, Reduction, Exergonic reaction

11. Photosynthetic bacteria release-
1) Sulphur 2) Oxygen 3) H2O 4) C6H12O6

12. Unit of Photosynthesis is
1) Chlorophyll 2) LHC 3) Photosystem 4) P700

13. In Eukaryotic photosynthetic cells water is formed and used in photosynthesis. In Bacterial photosynthesis water is
1) Neither used not formed
2) Formed but not used
3) Not formed but used
4) Used and formed

14. During photosynthes is
1) CO2 is taken first, O2 is released next
2) O2 is taken first, CO2 is released later
3) O2 is released first, CO2 is taken later
4) Taking CO2 and releasing of O2 occur simultaneously

15. The specific function of light energy in the process of photosynthesis is to
1) Activate chlorophyll
2) Split water
3) Reduce CO2
4) Synthesise Glucose

16. Spectrophotometer is useful to measure
1) The amount of light used to produce one molecule of Glucose
2) The amount of light required to split one H2O molecule
3) The light absorbed by pigments at different wave lengths
4) The amount of Glucose produced per unit time.

17. Maximum photosynthesis occurs in
1) Sun light 2) Infra red light
3) Blue light 4) Red light

KEY : 1-3; 2-4; 3-1; 4-2; 5-4; 6-3; 7-2 8-2; 9-1; 10-3; 11- 1; 12-3; 13-2; 14-3; 15-1; 16-3; 17-4.

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
Polygonum
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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