CPET Botany Previous year question paper 2020

                COMMON P. G. ENTRANCE TEST – 2020

DEPT. OF HIGHER EDUCATION, GOVT. OF ODISHA

                       Subject Code 13                                                                   Subject BOTANY

                                                              TEST BOOKLET
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 

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 

 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 

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 

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 

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 

 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 

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 
 
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

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