Quiz_Monera

1. Borrelia burgdorferi is noted for its ability to cause:

 
 
 
 

2. Leprosy is caused by:

 
 
 
 

3. The penicillin family of antibiotics is used primarily against:

 
 
 
 

4. The root nodules of leguminous plants contain:

 
 
 
 

5. Bacteria are found everywhere, except:

 
 
 
 

6. Gram stain is used to:

 
 
 
 

7. Mycoplasma is different from bacteria due to:

 
 
 
 

8. Those bacteria believed to have lived during the earliest years of the Earth belong to the group:

 
 
 
 

9. Water-borne bacterial diseases are:

 
 
 
 

10. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

11. Which functions as hydrogen donor in photosynthetic green sulfur bacteria?

 
 
 
 

12. Pneumonia is caused by:

 
 
 
 

13. Match column I with column II and select the correct option using the codes given below:

| Column I | Column II |
|——————|—————–|
| A Citric acid | (i) Trichoderma |
| B Cyclosporin A | (ii) Clostridium|
| C Statins | (iii) Aspergillus|
| D Butyric acid | (iv) Monascus |

Codes:

| | A | B | C | D |
|——|—|—|—|—|
| (a) | i | iv| ii| iii|
| (b) | iii| iv| i | ii|
| (c) | iii| i | ii| iv|
| (d) | iii| i | iv| ii|

Answer: (d) iii, i, iv, ii

Explanation: The correct matching is:
– A Citric acid – (iii) Aspergillus
– B Cyclosporin A – (i) Trichoderma
– C Statins – (iv) Monascus
– D Butyric acid – (ii) Clostridium

179 Which of the following sets of diseases is caused by bacteria?

 
 
 
 

14. Ethylene oxide is widely used to:

 
 
 
 

15. In bacterial photosynthesis, which functions as reductant of CO_ is:

 
 
 
 

16. Bacteria which convert elemental nitrogen into nitrogenous substances are:

 
 
 
 

17. Circular DNA is seen in:

 
 
 
 

18. Which is not true for Escherichia coli?

 
 
 
 

19. All the following human diseases are due to members of the genus Clostridium except:

 
 
 
 

20. The common bacterium, which lives in the human intestine is:

 
 
 
 

21. Which scientist in 1884 developed a valuable method of staining the bacteria?

 
 
 
 

22. Which of the following characteristics is associated with specialized transduction?

 
 
 
 

23. Enteric bacteria are those bacteria that live:

 
 
 
 

24. Most of the members of the genus Bacillus are known for:

 
 
 
 

25. Streptomycin is obtained from:

 
 
 
 

26. Usually bacteria do not require light for synthesis of food:

 
 
 
 

27. The DNA of E coli is:

 
 
 
 

28. Bacteria growing on synthetic medium are called:

 
 
 
 

29. In bacterial chromosome, the nucleic acid polymers are:

 
 
 
 

30. Mycoplasma are sensitive to:

 
 
 
 

31. Which of the following is a free-living anaerobic nitrogen-fixing bacteria?

 
 
 
 

32. Which bacteria convert NO_ to elemental nitrogen?

 
 
 
 

33. Botulinum toxin effects:

 
 
 
 

34. Botulism is a:

 
 
 
 

35. Retting is a process, by which bacteria bring about the:

 
 
 
 

36. The bacteria, which are smallest in size are:

 
 
 
 

37. Bacteria are considered to be plants because they:

 
 
 
 

38. Those bacteria designated microaerophilic are distinguished by their ability to grow:

 
 
 
 

39. For the disease of red stripe of sugarcane the bacterium responsible is:

 
 
 
 

40. Little leaf disease of Brinjal is caused by:

 
 
 
 

41. The method of reproduction in bacterium, in which a virus participates is:

 
 
 
 

42. An Hfr bacterium is one that contains:

 
 
 
 

43. Sometimes the bacterial cell is enclosed in:

 
 
 
 

44. An organism that lacks plastids, even then it manufactures its own food material:

 
 
 
 

45. E coli is a:

 
 
 
 

46. The process of transformation in bacteria does not require:

 
 
 
 

47. According to the fossil record, which event has occurred most recently?

 
 
 
 

48. Which of the following converts CO_ into carbohydrates?

 
 
 
 

49. Plasmids are:

 
 
 
 

50. What are plasmids?

 
 
 
 

51. A microbiologist found that some bacteria infected by phages had developed the ability to make a particular amino acid that they could not make before. This ability was probably a result of:

 
 
 
 

52. Citrus canker is caused by:

 
 
 
 

53. Usually, bacteria reproduce by:

 
 
 
 

54. Of all organisms, the most adaptable and versatile are:

 
 
 
 

55. The science of study of bacteria is known as bacteriology. The name bacteria was first of all given by:

 
 
 
 

56. Bacteria were first discovered by:

 
 
 
 

57. Pasteur is famous for his:

 
 
 
 

58. The bacteria that cause tetanus can be killed only by prolonged heating at temperatures considerably above boiling. This suggests that tetanus bacteria:

 
 
 
 

59. Mycoplasma contains:

 
 
 
 

60. The mode of nutrition of bacteria is usually:

 
 
 
 

61. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

62. Bacteria are placed under:

 
 
 
 

63. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

64. The biological term used to describe two organisms living together and beneficial to each other is:

 
 
 
 

65. Under suitable conditions, some bacteria are capable of reproducing by binary fission once every half hour. Suppose you placed a single bacterium in a culture medium and it (and its descendants) proceeded to reproduce at this rate. How many bacteria would be present after 5 hours?

 
 
 
 

66. Diaminopimelic acid and muramic acid are constituents of cell walls in:

 
 
 
 

67. Some bacteria cannot be killed easily because of:

 
 
 
 

68. Which of the following are absent in Mycoplasma?

 
 
 
 

69. Triple antigen injection or vaccine are for:

 
 
 
 

70. Leptothrix is an example of iron bacteria Which of the following statements best fit the iron bacteria?

 
 
 
 

71. Which of the following is necessary for the process of conjugation in bacteria?

 
 
 
 

72. Mycoplasma was discovered by:

 
 
 
 

73. Which family of bacteria can decompose a wide variety of organic compounds, natural or man-made, including inert ones like hydrocarbons? This property has actually been used by scientists to reduce pollution such as that from petroleum spillage:

 
 
 
 

74. The antibiotic is obtained from:

 
 
 
 

75. Which bacteria convert nitrate into nitrogen?

 
 
 
 

76. Waksman was awarded Nobel Prize for the discovery of:

 
 
 
 

77. Members of the genera Azotobacter and Rhizobium are important because they:

 
 
 
 

78. For purposes of microbial control, the term sterilization implies:

 
 
 
 

79. Photosynthetic bacteria have:

 
 
 
 

80. Which organisms are the oldest life forms?

 
 
 
 

81. Some diseases caused by bacteria are:

 
 
 
 

82. Broad spectrum antibiotic is, which:

 
 
 
 

83. Economic importance of bacteria lies in their being:

 
 
 
 

84. Bacteria which are highly spiral in shape are called:

 
 
 
 

85. Which statement is wrong in regard to bacteria?

 
 
 
 

86. Soil fertility is lost by the activities of:

 
 
 
 

87. Wine turns sour because of:

 
 
 
 

88. Typhoid in man is caused by:

 
 
 
 

89. Most resistant spore in bacteria is:

 
 
 
 

90. Acetobacter is useful in:

 
 
 
 

91. The nucleus of bacteria is:

 
 
 
 

92. The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals include the:

 
 
 
 

93. Methanogens belong to:

 
 
 
 

94. Fertility of the soil is increased by:

 
 
 
 

95. Substances obtained from microorganisms and used to inhibit the growth of other microorganisms are:

 
 
 
 

96. Cocci types of bacteria are:

 
 
 
 

97. Mycoplasma are:

 
 
 
 

98. Doctors usually boil their syringe and other surgical instruments before use:

 
 
 
 

99. Mycoplasmas are not viruses in nature because:

 
 
 
 

100. Diphtheria is caused by:

 
 
 
 

101. The decomposition of organic compounds in the presence of O2 and without the development of odoriferous substances is called:

 
 
 
 

102. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

103. At least two billion years, nearly half the age of Earth, the only organisms that existed were:

 
 
 
 

104. Which disease is caused by the bacterium Treponema pallidum?

 
 
 
 

105. All archaebacteria lack:

 
 
 
 

106. Asexual reproductive bodies in some higher mycelial bacteria (eg, Actinomycetous forms) are:

 
 
 
 

107. Milk is converted to curd by:

 
 
 
 

108. Which of the following statement is correct?

 
 
 
 

109. Bacteria which are spherical are called:

 
 
 
 

110. Certain bacteria are able to thrive under extreme environmental conditions such as the absence of oxygen, high salt concentration, high temperature, or highly acidic environment What are these bacteria called?

 
 
 
 

111. The structure formed by the bacterial genome is generally called as:

 
 
 
 

112. Nitrifying bacteria play an important role by converting:

 
 
 
 

113. Antibiotics cure the disease by:

 
 
 
 

114. In prokaryotes, the mitochondria are absent. Even then Krebs’ cycle takes place. What is the site of Krebs’ cycle in bacteria?

 
 
 
 

115. Photoautotrophic bacteria have:

 
 
 
 

116. A plasmid found in some bacteria can integrate reversibly with the chromosome of its host and then it behaves as part of the host chromosome, multiplying with it What is this plasmid known as?

 
 
 
 

117. The bacterial decomposition of nitrogenous organic compounds in the absence of abundant oxygen usually results in the formation of substances of offensive odor, chiefly sulfur compounds. Such anaerobic decomposition is called:

 
 
 
 

118. Which is the nuclear material in bacteria?

 
 
 
 

119. To which country Antony van Leeuwenhoek belong?

 
 
 
 

120. Streptomyces falls under:

 
 
 
 

121. All the following human diseases are caused by spirochetes except:

 
 
 
 

122. The smallest bacterium is:

 
 
 
 

123. Members of the genus Streptococcus are responsible for cases of:

 
 
 
 

124. Chemosynthetic bacteria are:

 
 
 
 

125. In Molecular Biology, E coli has been used in studying:

 
 
 
 

126. Which one is the smallest organism capable of autonomous growth and reproduction?

 
 
 
 

127. Chemoautotrophic bacteria are bacteria that derive their energy from chemical reactions and:

 
 
 
 

128. Among the currently used drugs for treating tuberculosis are:

 
 
 
 

129. Which is not found in bacteria?

 
 
 
 

130. Clostridium can:

 
 
 
 

131. To introduce a foreign gene in a plant, which one is used?

 
 
 
 

132. Select the wrong statement:

 
 
 
 

133. Which is a group of ancient photosynthetic prokaryotes which give oxygen during photosynthesis?

 
 
 
 

134. Which of the following diseases are caused by Mycoplasma?

 
 
 
 

135. Cyanobacteria, unlike other types of bacteria that photosynthesize and:

 
 
 
 

136. Nitrogen-fixing bacteria may be located:

 
 
 
 

137. Substances released by some bacteria to cause toxicity in host are:

 
 
 
 

138. The similarity between cyanobacteria and bacteria:

 
 
 
 

139. Cell walls of Gram-positive bacteria contain:

 
 
 
 

140. An English surgeon believed that microorganisms of the air caused infection in the wound and to avoid the infection, he used carbolic acid and hence he became the father of modern antiseptic surgery. His name is:

 
 
 
 

141. The specific genes found on the plasmids of E coli are:

 
 
 
 

142. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

143. Bacteria which are found in marshy areas and among the flora of cattle rumen are called:

 
 
 
 

144. Beijerinck isolated a free living nitrogen fixer bacterium, named:

 
 
 
 

145. Genetically engineered bacteria have been successfully used in the commercial production of:

 
 
 
 

146. Bacteria species of Thiobacillus and Beggiatoa play an important role in the:

 
 
 
 

147. Chemosynthetic bacteria are:

 
 
 
 

148. Which of the following is a beneficial activity of microorganisms?

 
 
 
 

149. The cell wall of bacteria is made-up of:

 
 
 
 

150. When the F-factor enters a recipient cell during conjugation, the recipient cell:

 
 
 
 

151. What is the role of nitrifying bacteria?

 
 
 
 

152. The largest known bacterium is:

 
 
 
 

153. Pasteurized milk is:

 
 
 
 

154. Which is the hydrogen donor in the bacterial photosynthesis?

 
 
 
 

155. Germ theory of disease was proposed by:

 
 
 
 

156. Halophiles are the bacteria that require for growth: