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By Vijay Wardhan • December 8, 2024

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

 
 
 
 

2. Fruits are not found in :

 
 
 
 

3. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

4. Embryophyta includes :

 
 
 
 

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

 
 
 
 

6. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Late blight of potato is caused by :

 
 
 
 

11. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

13. Bryophyta have been placed in cryptogams because:

 
 
 
 

14. Smut of maize is caused by :

 
 
 
 

15. Which of the following is a monocot?

 
 
 
 

16. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

18. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

20. Which of the following does not contain chlorophyll?

 
 
 
 

21. Roots are absent in :

 
 
 
 

22. Downy mildew disease is caused by :

 
 
 
 

23. Gymnosperms could also be called as:

 
 
 
 

24. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

29. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

33. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Liverworts are included in :

 
 
 
 

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

 
 
 
 

40. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

44. Maximum diversity of life forms occurs in :

 
 
 
 

45. Citrus canker is caused by :

 
 
 
 

46. Ergot is obtained from :

 
 
 
 

47. Black rust of wheat is caused by:

 
 
 
 

48. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

54. Pteridophytes are also known as :

 
 
 
 

55. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

57. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

59. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Embryo formation is not known in :

 
 
 
 

70. Banana bunchy top is caused by :

 
 
 
 

71. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Most primitive embryophytes are placed in :

 
 
 
 

76. Rice, pea, potato are :

 
 
 
 

77. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Cryptogams include :

 
 
 
 

81. Woody climbers are known as :

 
 
 
 

82. The disease symptom necrosis refers to :

 
 
 
 

83. Ovary is absent in :

 
 
 
 

84. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Which one of the following is a monocot?

 
 
 
 

89. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

91. Club moss and Peat moss belong to:

 
 
 
 

92. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

97. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Which of the following statements is not correct?

 
 
 
 

101. Which among the following is a shrub?

 
 
 
 


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