Odisha CPET 2020 Question Paper Botany

COMMON P. G. ENTRANCE TEST – 2020

Test Booklet No. :

DEPT. OF HIGHER EDUCATION, GOVT. OF ODISHA
TEST BOOKLET

Subject Code 13 Subject BOTANY

Time Allowed : 90 Minutes Full Marks : 70
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XL – 30/10 ( Turn over )

XL – 30/10 (2) ( Continued )

1. Lipopolysaccharide in cell walls is the characteristic of which of the following
microorganisms ?

(A) Gram-positive bacteria

(B) Gram-negative bacteria

(C) Fungi

(D) Algae

2. Which one of the following is not a Cyanobacteria ?

(A) Nostoc

(B) Spirulina

(C) Anabaena

(D) Zygnema

3. Presence of phycobilins is the typical feature of which one of the following ?

(A) Cyanophyceae and Rhodophyceae

(B) Chlorophyceae and Carophyceae

(C) Xanthophyceae and Phaeophyceae

(D) Rhodophyceae only

4. Which one of the following is branched form of starch ?

(A) Amylose

(B) Amylopectin

(C) Maltose

(D) Galactose

5. The bio-membrane exhibiting maximum fluidity is :

(A) Outer membrane of endoplasmic reticulum

(B) Chloroplast envelop

(C) Thylakoid membrane

(D) Outer membrane of mitochondria

XL – 30/10 (3) ( Turn over )

6. Primary structure of protein is stabilised by :

(A) Hydrogen bond

(B) Peptide bond

(C) Amide bond

(D) Glycoside bond

7. Read the following statements and choose the appropriate combination :

(i) Passive transport does not require energy and occurs in a down-hill
direction.

(ii) Passive transport does not require energy and occurs in an up-hill
direction.

(iii) Active transport requires energy and occurs in a down-hill direction.

(iv) Active transport requires energy and occurs in an up-hill direction.
(A) Statement (i) is correct, but (ii) , (iii) and (iv) are wrong.
(B) Statement (i) and (ii) are correct, but (iii) and (iv) are wrong.
(C) Statement (i) and (iii) are correct, but (ii) and (iv) are wrong.
(D) Statement (i) and (iv) are correct, but (ii) and (iii) are wrong.

8. Which one of the following is true for Fungi ?

(A) Prokaryotic

(B) Eukaryotic

(C) Prokaryotic and lack chlorophyll

(D) Eukaryotic and lack chlorophyll

9. Rhizopus stolonifer belongs to which one of the following class ?

(A) Acrasiomycetes

(B) Zygomycetes

(C) Ascomycetes

(D) Deuteromycetes

XL – 30/10 (4) ( Continued )

10. The group of plants which can produce spores and embryos, but lack seeds and
vasculature are :
(A) Algae
(B) Fungi
(C) Bryophytes
(D) Pteridophytes

11. Which one of the following is a Pteridophyte ?
(A) Oedogonium
(B) Lycopodium
(C) Riccia
(D) Gnetum

12. Presence of coralloid roots is the typical feature of :
(A) Pinus
(B) Cedrus
(C) Cycas
(D) Gnetum

13. Which one of the following is not a phloem cell ?
(A) Sieve element
(B) Companion cell
(C) Tracheid
(D) Transfer cell

14. The name of the Scientist who coined the term ‘Kranz anatomy’ in C4 plants is coined
by :
(A) Melvin Calvin
(B) Hatch and Slack
(C) G. Haberlandt
(D) Andrew A. Benson

XL – 30/10 (5) ( Turn over )

15. Anomalous secondary growth is found in :

(A) Dracaena

(B) Triticum

(C) Helianthus

(D) Cucurbita

16. Jute is a :

(A) Bast fibre from primary xylem

(B) Bast fibre from secondary xylem

(C) Bast fibre from primary phloem

(D) Bast fibre from secondary phloem

17. Green revolution is :

(A) Revolution in agriculture and crop yield

(B) Preparation of large numbers of green houses

(C) Chipko movement

(D) Revolution in chemical industries

18. Sequence on the DNA molecules that are same on both strands when read in the
same direction (either 5’ → 3’ or 3’ → 5’) are known as :

(A) Restriction Sequence

(B) Pallindrome sequence

(C) Both (A) and (B)

(D) None of the above

19. In case of incomplete dominance, the phenotypic ratio of a monohybrid cross is :

(A) 1:3

(B) 1:2:1

(C) 1 : 3 : 1

(D) 1 : 1 : 2

XL – 30/10 (6) ( Continued )

20. In meiotic cell division, daughter cells are produced by two successive divisions where :
(A) Both divisions are equational
(B) Both divisions are reductional
(C) First division is equational whereas second is reductional
(D) First division is reductional whereas second is equational

21. Which one of the following enzyme is responsible for the joining of Okazari fragment
to from the lagging strand of DNA ?
(A) DNA Polymerase-I
(B) DNA Polymerase-II
(C) DNA ligase
(D) RNAse

22. Which one of the following DNA marker used to determine the paternity of a child ?
(A) RAPD
(B) RFLP
(C) AFLP
(D) All the above

23. Which one of the following is chain initiating codon to code an amino acid during
protein synthesis ?
(A) AUG
(B) AUU
(C) AUC
(D) AGU

24. Crossing over takes place in which one of the following during prophase-I of meiosis ?
(A) Diplotene
(B) Pachytene
(C) Leptotene
(D) Diakinesis

XL – 30/10 (7) ( Turn over )

25. Which one of the following Bio-geo-chemical cycle is a sedimentary cycle ?
(A) Oxygen cycle
(B) Hydrogen cycle
(C) Nitrogen cycle
(D) Phosphorus cycle

26. Ecosystem is the smallest unit of :
(A) Ionosphere
(B) Lithosphere
(C) Biosphere
(D) Mesosphere

27. Which one of the following is most primitive family among Angiosperms ?
(A) Magnoliaceae
(B) Rubiaceae
(C) Liliaceae
(D) Poaceae

28. Hutchinson system of classification of plants has been published in :
(A) Origin of Flowering plants
(B) Taxonomical classification of Flowering plants
(C) Families of Flowering plants
(D) Flowering plants and their classification

29. Which one of the following statement is incorrect about apomixes ?
(A) Formation of seeds without fertilization
(B) Meiotic division and fertilization of gametes takes place to form a zygote
(C) Apomixis produces genetically identical mother cells
(D) There is no fertilization involved in both apomixis and parthenocarpy

30. Water potential inside the xylem at the top of a tall tree during the hot sunny day time
is :
(A) Always negative
(B) Always positive
(C) Always zero
(D) Sometimes positive and sometimes negative

XL – 30/10 (8) ( Continued )

31. According to Poisellei’s equation, the amount of pressure gradient required to lift
water from the base to the top of a 100m tall tree is approximately :
(A) 0.2 Mega pascals
(B) 2.0 Mega pascals
(C) 20.0 Mega pascals
(D) 200.0 Mega pascals

32. According to Munch’s pressure flow hypothesis, the main driving force for transport
of organic solutes in the phloem tissue from source to sink is :
(A) Concentration gradient
(B) Osmotically generated pressure gradient
(C) Diffusion pressure deficit
(D) Energy through hydrolysis of ATP

33. Which one of the following is a Florigen ?
(A) Flowering Locus Q
(B) Flowering Locus R
(C) Flowering Locus S
(D) Flowering Locus T

34. Inverted stomatal cycle is the characteristic of which group of plants ?
(A) C3 plants
(B) C4 plants
(C) Both C3 and C4 plants
(D) CAM plants

35. The only enzyme in the Kreb’s cycle attached to the inner mitochondrial membrane
is :
(A) Succinate dehydrogenase
(B) Isocitrate dehydrogenase
(C) NADPH dehydrogenase
(D) Malate dehydrogenase

XL – 30/10 (9) ( Turn over )

36. Glycolysis occur in :
(A) Aerobic cells
(B) Anaerobic cells
(C) Both aerobic and anaerobic cells
(D) Neither aerobic, nor anaerobic cells

37. Which one of the following is the acceptor of CO2 in Calvin cycle ?
(A) RuBP
(B) Glyceral dehyde 3-phosphate
(C) Dihydroxy acetone phosphate
(D) Xylulose 4-phosphate

38. The variation in invitro culture is called :
(A) Mutation
(B) In-vitro variation
(C) Somaclonal variation
(D) All of the above

39. Introduction of DNA into cells by exposing to high voltage electric pulse is called :
(A) Electrofusion
(B) Electrofission
(C) Electrolysis
(D) Electroporation

40. Which one of the following bacterium is considered as ‘natural genetic engineer’ ?
(A) Agrobacterium tumefaciens
(B) Agrobacterium radiobactor
(C) Pseudomonas putida
(D) Thermus aquaticus

41. The chromosome of a typical bacterium is
(A) Circular double-stranded DNA
(B) Circular single-stranded DNA
(C) Double-helix DNA
(D) Linear single stranded DNA

XL – 30/10 ( 10 ) ( Continued )

42. Which one of the followings are acellular slime moulds ?
(A) Acrasiomycetes (B) Myxomycetes
(C) Oomycetes (D) Ascomycetes

43. The Tobacco Mosaic Virus (TMV) is approximately ———— in size.
(A) 300 X 18 nm (B) 3000 X 5 nm
(C) 800 X 10 nm (D) 700 X 30 nm

44. Which one of the following can be called a Provirus ?
(A) Free virus (B) Free DNA
(C) Primitive virus (D) Integrated viral genome

45. Fungi that lack partitions (septa) are called :
(A) Ahyphae (B) Coenocytic
(C) Conidia (D) Yeast

46. The stele present in Equisetum is a :
(A) Haplostele (B) Actinostele
(C) Plectostele (D) Siphonostele

47. In Gymnosperms, the term megasporophyll is used for :
(A) Carpels
(B) Stamens
(C) Female cone
(D) Scales

48. The final stable community in ecological succession is known as :
(A) Final community
(B) Seral community
(C) Climax community
(D) Invaded community

49. The species responsible for making the characteristics of the community are called :
(A) Extra-ordinary species
(B) Special species
(C) Dominant species
(D) High-performer species
XL – 30/10 ( 11 ) ( Turn over )

50. The famous Botanical garden ‘Kew’ is located in :

(A) India (B) England

(C) Russia (D) Australia

51. Taxon is a :

(A) Highest rank of classification

(B) Species which are advanced in a community

(C) Simple unit of classification

(D) Group of closely related organisms

52. Binomial nomenclature refers to :

(A) Two names of the same plant

(B) One botanical name and the other common name

(C) One scientific name consists of generic name and the other species name

(D) One botanical name associated with the name of the Scientist who identified it
for the first time

53. Which one of the following is correct about a herbarium ?
(A) Herbariums are basically plant specimens that are dried and preserved on
sheets.
(B) Herbarium sheets usually contain the date and place of collection, name, family
and name of the person who collected the specimen etc.
(C) Herbarium may be used as a referral system for taxonomical studies
(D) All of the above

54. Which one of the following is the largest family among Angiosperms ?
(A) Fabaceae (B) Asteraceae
(C) Malvaceae (D) Rubiaceae

55. After fertilization, the seed coat develops from :
(A) Chalaza (B) Ovule
(C) Integuments (D) Fertilized egg cell

XL – 30/10 ( 12 ) ( Continued )

56. Endosperm in Angiospermic plant is :
(A) Haploid (B) Monoploid
(C) Diploid (D) Triploid

57. The transfer of pollen from the anther to the stigma is called :
(A) Air diffusion (B) Pollination
(C) Fertilization (D) Ovulisation

58. Vascular bundles are scattered in which of the following ?
(A) Dicot root (B) Dicot stem
(C) Pteridophytes (D) Monocot stem

59. Presence of collenchymatous hypodermis is the typical feature of :
(A) Dicot stem (B) Monocot stem
(C) Monocot root (D) None of the above

60. Casparian strips are present in :
(A) Epidermis (B) Cortex
(C) Endodermis (D) Vascular bundles

61. Which one of the following is not the component of water potential ?
(A) Osmotic potential (B) Action potential
(C) Pressure potential (D) Matric potential

62. Which one of the following is not responsible for guttation in grass leaves ?
(A) Root pressure (B) High transpiration
(C) Very low or no transpiration (D) Hydathodes

63. Which one of the following is involved in active transport ?
(A) Pumps (B) Channels
(C) Plasmodesmata (D) Aquaporins

64. Apoplastic phloem loading is basically :
(A) A passive process
(B) An active process
(C) Mediated by open plasmodesmata
(D) None of the above

XL – 30/10 ( 13 ) ( Turn over )

65. Which one of the following statement is correct at functional maturity of cells ?
(A) Phloem sieve elements are living cells, but xylem tracheary elements are dead
cells.
(B) Phloem sieve elements are dead cells, but xylem tracheary elements are living
cells.
(C) Both phloem sieve elements and xylem tracheary elements are living cells.
(D) Both phloem sieve and xylem tracheary elements are dead cells at functional
maturity.

66. Which one of the following is a gaseous growth retarding hormone ?
(A) IAA (B) Ethylene
(C) ABA (D) Cytokinin

67. Apical dominance in plant is controlled by :
(A) Auxin (B) Gibberellin
(C) Ethylene (D) ABA

68. ‘Km’ value in enzyme kinetics refers to :
(A) Substrate concentration at maximal velocity
(B) Substrate concentration at half maximal velocity
(C) Substrate concentration at the end of enzymatic reaction
(D) None of the above

69. The enzyme ‘Rubisco’ in C3 plants is responsible for :
(A) Carboxylation
(B) Oxygenation
(C) Both carboxylation and oxygenation
(D) Reduction

70. Which one of the following is not involved in light reaction of photosynthesis ?
(A) Chlorophylls (B) Phycobilins
(C) Carotenoids (D) Flavonoids

XL – 30/10 ( 14 ) ( Continued )

SPACE FOR ROUGH WORK

XL – 30/10 (5,950) ( 15 ) Botany