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By Vijay Wardhan • December 8, 2024

1. Ovary is absent in :

 
 
 
 

2. Late blight of potato is caused by :

 
 
 
 

3. Oswald Tippo’s classification is:

 
 
 
 

4. Green plants are classified as :

 
 
 
 

5. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

10. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Roots are absent in :

 
 
 
 

18. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Embryophyta includes :

 
 
 
 

23. Club moss and Peat moss belong to:

 
 
 
 

24. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

26. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

28. Which of the following is a monocot?

 
 
 
 

29. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

31. Cryptogams include :

 
 
 
 

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

 
 
 
 

33. Club moss is the common name of :

 
 
 
 

34. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

39. The disease symptom necrosis refers to :

 
 
 
 

40. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

42. Citrus canker is caused by :

 
 
 
 

43. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Ovules are not found enclosed in ovary in :

 
 
 
 

50. Aflatoxin is produced as a product in :

 
 
 
 

51. Smut of maize is caused by :

 
 
 
 

52. Small epidermal swellings due to infection are called :

 
 
 
 

53. Woody climbers are known as :

 
 
 
 

54. Vascular cryptogam is the term used for :

 
 
 
 

55. Most primitive embryophytes are placed in :

 
 
 
 

56. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Liverworts are included in :

 
 
 
 

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

 
 
 
 

61. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

63. Black rust of wheat is caused by:

 
 
 
 

64. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

74. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

76. Ergot is obtained from :

 
 
 
 

77. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Mixed cropping helps :

 
 
 
 

85. Oswald Tippo’s classification was based on :

 
 
 
 

86. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

95. Fruits are not found in :

 
 
 
 

96. Which of the following does not contain chlorophyll?

 
 
 
 

97. Which one of the following is a monocot?

 
 
 
 

98. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

100. Which of the following are included in Tracheophyta?

 
 
 
 

101. Disease resistant plant varieties can be produced by :

 
 
 
 


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