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1. Green plants are classified as :

 
 
 
 

2. Liverworts are included in :

 
 
 
 

3. Which of the following is a monocot?

 
 
 
 

4. Club moss and Peat moss belong to:

 
 
 
 

5. In plants, the substances which accumulate around the site of infection are :

 
 
 
 

6. When an infection is very wide in occurrence, it is called :

 
 
 
 

7. Which of the following is the kingdom of multicellular producers?

 
 
 
 

8. Chemicals which are applied soon after the outset of infection, suppress the development of pathogen, thus curing the plant, are called :

 
 
 
 

9. If a disease appear on large scale after a long interval it is :

 
 
 
 

10. A branch of science that deals with nature, symptoms, development and control of plant diseases is called :

 
 
 
 

11. In which of the following plants would you place heterotrophs like slime moulds, rusts, mushrooms, etc.?

 
 
 
 

12. Most primitive embryophytes are placed in :

 
 
 
 

13. Which of the following statements is not correct?

 
 
 
 

14. Maximum diversity of life forms occurs in :

 
 
 
 

15. Banana bunchy top is caused by :

 
 
 
 

16. Vascular tissue is found in :

 
 
 
 

17. A disease is abnormal state that may result due to :

 
 
 
 

18. Red rot of sugarcane is caused by :

 
 
 
 

19. Fruits are not found in :

 
 
 
 

20. Which one of the following is a monocot?

 
 
 
 

21. Citrus canker is caused by :

 
 
 
 

22. Woody climbers are known as :

 
 
 
 

23. There are some dead and corky areas with definite margins on the stem, branches and fruits of lemon. This disease should be :

 
 
 
 

24. Which of the following is not a fungal disease?

 
 
 
 

25. Downy mildew disease is caused by :

 
 
 
 

26. Chief constituents of bordeaux mixture are :

 
 
 
 

27. The scientist who is famous for his research on rust fungi in India is :

 
 
 
 

28. Disease resistant plant varieties can be produced by :

 
 
 
 

29. Mixed cropping helps :

 
 
 
 

30. According to Woese, fungi were placed in the domain :

 
 
 
 

31. Oswald Tippo’s classification was based on :

 
 
 
 

32. Oswald Tippo’s classification is:

 
 
 
 

33. The disease symptom necrosis refers to :

 
 
 
 

34. The plants with soft and delicate stems, about a meter tall are known as :

 
 
 
 

35. Ergot is obtained from :

 
 
 
 

36. A part of pathogen that is transmitted to the host is termed as :

 
 
 
 

37. Etiology includes the study of :

 
 
 
 

38. The tallest living gymnosperm tree in the world belongs to :

 
 
 
 

39. There is a class of phenolic compounds produced by the host plant in response to fungal infections :

 
 
 
 

40. Quarantine regulations are concerned with:

 
 
 
 

41. Which of the following plants does not belong to Embryophyta?

 
 
 
 

42. A plant which reproduces by spores, has vascular tissue but lacks flowers should belong to :

 
 
 
 

43. Which of the following causes smut disease in cultivated plants?

 
 
 
 

44. Body disorders due to harmful physiological changes are known as :

 
 
 
 

45. Red rot of sugarcane is caused by :

 
 
 
 

46. A diseased leaf shows some areas with dead tissue. This symptom is often referred to as :

 
 
 
 

47. Bryophyta have been placed in cryptogams because:

 
 
 
 

48. Cryptogams include :

 
 
 
 

49. Small epidermal swellings due to infection are called :

 
 
 
 

50. Black rust of wheat is caused by:

 
 
 
 

51. The pathogen that causes covered smut of Sorghum is :

 
 
 
 

52. Aflatoxin is produced as a product in :

 
 
 
 

53. When a diseased plant is legally stopped from export, this is done under :

 
 
 
 

54. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

55. Which of the following is not a viral disease?

 
 
 
 

56. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

57. Leaf spot of groundnut is caused by :

 
 
 
 

58. An excessive enlargement of diseased organ because of increase in the number of cells is called :

 
 
 
 

59. Which part of the plant is not affected by Albugo?

 
 
 
 

60. Which group of plants is called “Amphibians of Plant World”?

 
 
 
 

61. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

62. Late blight of potato is caused by :

 
 
 
 

63. Ovary is absent in :

 
 
 
 

64. Roots are absent in :

 
 
 
 

65. The disease occurring more or less regularly from year to year in a particular locality is referred to as :

 
 
 
 

66. Which of the following is not a correct match?

 
 
 
 

67. Propagating materials like seeds, tubers, grafts and bulbs can be kept free of pathogens by :

 
 
 
 

68. The causal organism of early blight of potato is :

 
 
 
 

69. Smut of maize is caused by :

 
 
 
 

70. In which group would you place a plant that reproduces by spores, develops embryo but plant body remains undifferentiated into root, stem and leaves?

 
 
 
 

71. Gymnosperms could also be called as:

 
 
 
 

72. Vascular cryptogam is the term used for :

 
 
 
 

73. Which of the following is the most destructive enemies of mankind?

 
 
 
 

74. Seeds are characteristically found in :

 
 
 
 

75. Which are non-seed-bearing vascular plants?

 
 
 
 

76. Which of the following does not help in penetration of pathogen into the host?

 
 
 
 

77. Pythium debaryanum is the causative agent of:

 
 
 
 

78. A plant bears fruit, has a column of vascular bundle and a tap root system. This plant is a :

 
 
 
 

79. Who is known as ‘Father of Taxonomy’?

 
 
 
 

80. Multicellular and jacketed sex organs are found in :

 
 
 
 

81. Severe famine of West Bengal of 1942-43 was due to destruction of rice crop by a fungus called :

 
 
 
 

82. Ovules are not found enclosed in ovary in :

 
 
 
 

83. Which one of the following belong to cryptogams only:

 
 
 
 

84. Which of the following are included in Tracheophyta?

 
 
 
 

85. Pteridophytes are also known as :

 
 
 
 

86. The smut mycelium which initiates the infection is usually :

 
 
 
 

87. Leaves of pea show white powdery patches due to the growth of fungal mycelium with conidia and conidiophores. These are the symptoms of :

 
 
 
 

88. A perennial that bears flowers and fruits once in a life time is known as :

 
 
 
 

89. Atracheata term has been used by Oswald Tippo for :

 
 
 
 

90. Which among the following is a shrub?

 
 
 
 

91. A control measure prior to the appearance of a particular disease comes under :

 
 
 
 

92. Embryophyta includes :

 
 
 
 

93. Rice, pea, potato are :

 
 
 
 

94. Which of the following does not contain chlorophyll?

 
 
 
 

95. The inability of a plant to resist the effects of a pathogen or any other damaging factors is known as :

 
 
 
 

96. Which of the following organisms has characters of both animals and plants?

 
 
 
 

97. Club moss is the common name of :

 
 
 
 

98. All but one group are included in tracheophyta; which group is this :

 
 
 
 

99. When the seeds are borne on megasporophylls and are not enclosed in a fruit, the plant belongs to :

 
 
 
 

100. Spermatophyta are characterized by producing:

 
 
 
 

101. Embryo formation is not known in :

 
 
 
 


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