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1. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Club moss is the common name of :

 
 
 
 

6. Ergot is obtained from :

 
 
 
 

7. Most primitive embryophytes are placed in :

 
 
 
 

8. The disease symptom necrosis refers to :

 
 
 
 

9. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Vascular cryptogam is the term used for :

 
 
 
 

13. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

15. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

17. Ovules are not found enclosed in ovary in :

 
 
 
 

18. Embryo formation is not known in :

 
 
 
 

19. Roots are absent in :

 
 
 
 

20. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Club moss and Peat moss belong to:

 
 
 
 

25. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Which of the following statements is not correct?

 
 
 
 

30. Leaf spot of groundnut is caused by :

 
 
 
 

31. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

43. Disease resistant plant varieties can be produced by :

 
 
 
 

44. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

46. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

48. Seeds are characteristically found in :

 
 
 
 

49. Aflatoxin is produced as a product in :

 
 
 
 

50. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

54. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Woody climbers are known as :

 
 
 
 

59. Embryophyta includes :

 
 
 
 

60. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

67. Cryptogams include :

 
 
 
 

68. Smut of maize is caused by :

 
 
 
 

69. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Maximum diversity of life forms occurs in :

 
 
 
 

73. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Pteridophytes are also known as :

 
 
 
 

79. Mixed cropping helps :

 
 
 
 

80. Banana bunchy top is caused by :

 
 
 
 

81. Red rot of sugarcane is caused by :

 
 
 
 

82. Fruits are not found in :

 
 
 
 

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

 
 
 
 

84. Oswald Tippo’s classification is:

 
 
 
 

85. Quarantine regulations are concerned with:

 
 
 
 

86. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

88. Etiology includes the study of :

 
 
 
 

89. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

91. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Rice, pea, potato are :

 
 
 
 

97. Which among the following is a shrub?

 
 
 
 

98. Red rot of sugarcane is caused by :

 
 
 
 

99. Which one of the following is a monocot?

 
 
 
 

100. Ovary is absent in :

 
 
 
 

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

 
 
 
 


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