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1. Green plants are classified as :

 
 
 
 

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

 
 
 
 

3. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

4. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Which one of the following is a monocot?

 
 
 
 

8. Fruits are not found in :

 
 
 
 

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

 
 
 
 

10. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

17. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

31. Late blight of potato is caused by :

 
 
 
 

32. Rice, pea, potato are :

 
 
 
 

33. Roots are absent in :

 
 
 
 

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

 
 
 
 

35. Etiology includes the study of :

 
 
 
 

36. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

38. Ovary is absent in :

 
 
 
 

39. The disease symptom necrosis refers to :

 
 
 
 

40. Vascular tissue is found in :

 
 
 
 

41. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

43. Club moss is the common name of :

 
 
 
 

44. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

46. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Aflatoxin is produced as a product in :

 
 
 
 

51. Which of the following statements is not correct?

 
 
 
 

52. Citrus canker is caused by :

 
 
 
 

53. Red rot of sugarcane is caused by :

 
 
 
 

54. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

56. Club moss and Peat moss belong to:

 
 
 
 

57. Maximum diversity of life forms occurs in :

 
 
 
 

58. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Woody climbers are known as :

 
 
 
 

62. Spermatophyta are characterized by producing:

 
 
 
 

63. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

65. Black rust of wheat is caused by:

 
 
 
 

66. Liverworts are included in :

 
 
 
 

67. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

69. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

77. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

83. Which of the following is a monocot?

 
 
 
 

84. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

86. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

88. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

90. Cryptogams include :

 
 
 
 

91. Chief constituents of bordeaux mixture are :

 
 
 
 

92. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Embryophyta includes :

 
 
 
 

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

 
 
 
 

97. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

99. Mixed cropping helps :

 
 
 
 

100. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 


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