Quiz_Plantae

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

 
 
 
 

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

 
 
 
 

3. Multicellular and jacketed sex organs are found in :

 
 
 
 

4. Chief constituents of bordeaux mixture are :

 
 
 
 

5. Ovary is absent in :

 
 
 
 

6. Woody climbers are known as :

 
 
 
 

7. Oswald Tippo’s classification is:

 
 
 
 

8. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

10. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Vascular cryptogam is the term used for :

 
 
 
 

22. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

31. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Roots are absent in :

 
 
 
 

38. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Red rot of sugarcane is caused by :

 
 
 
 

42. Embryophyta includes :

 
 
 
 

43. Late blight of potato is caused by :

 
 
 
 

44. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

46. Maximum diversity of life forms occurs in :

 
 
 
 

47. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Club moss is the common name of :

 
 
 
 

55. Pteridophytes are also known as :

 
 
 
 

56. Etiology includes the study of :

 
 
 
 

57. Which of the following are included in Tracheophyta?

 
 
 
 

58. Citrus canker is caused by :

 
 
 
 

59. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. The disease symptom necrosis refers to :

 
 
 
 

63. Embryo formation is not known in :

 
 
 
 

64. Which of the following does not contain chlorophyll?

 
 
 
 

65. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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 is not a fungal disease?

 
 
 
 

69. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

70. Disease resistant plant varieties can be produced by :

 
 
 
 

71. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Liverworts are included in :

 
 
 
 

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

 
 
 
 

78. Quarantine regulations are concerned with:

 
 
 
 

79. Green plants are classified as :

 
 
 
 

80. Which among the following is a shrub?

 
 
 
 

81. Spermatophyta are characterized by producing:

 
 
 
 

82. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

83. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

85. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Red rot of sugarcane is caused by :

 
 
 
 

89. Oswald Tippo’s classification was based on :

 
 
 
 

90. Black rust of wheat is caused by:

 
 
 
 

91. Most primitive embryophytes are placed in :

 
 
 
 

92. Fruits are not found in :

 
 
 
 

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

 
 
 
 

94. Which one of the following is a monocot?

 
 
 
 

95. Cryptogams include :

 
 
 
 

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

 
 
 
 

97. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

99. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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