Quiznetik

Microbiology | Set 2

1. Rh factor of the blood was discovered by scientist

Correct : B. Landsteiner and Weiner

2. Trepanema pallidum was discovered by

Correct : A. Schaudinn and Hoffman

3. Fluroscent substance used in fluorescent microscopy are

Correct : C. All of these

4. In Streptococcus fecalis, the conjugation takes place at

Correct : C. Cell wall

5. The infected mad dogs may contain

Correct : C. Negri bodies

6. What disease the Nesser will produce?

Correct : D. Measles

7. Rancidity in spoiled foods is due to

Correct : A. Lipolytic organisms

8. The Baterium that is most commonly used in genetic engineering is

Correct : A. Escherichia

9. The functions of plasmid are

Correct : D. None of the above

10. Mycoplasmas are bacterial cells that

Correct : C. Are resistant to penicillin

11. The etiologic agent of botulism is a

Correct : A. Neurotoxin

12. The bacterial cells are at their metabolic peak during

Correct : B. Log

13. Protein particles which can infect are called

Correct : B. Prions

14. In most of purple bacteria, the light harvesting centers are

Correct : B. B 850 & B 875

15. Endotoxin produced by gramnegative bacteria is present in

Correct : B. Lippolysacharide

16. Which one of the following was Gramnegative, chemolithotrophic bacteria?

Correct : B. E.coli

17. The mode of reproduction which occurs in mycoplasma is

Correct : C. Binary fission

18. Which one of the following is about Herpes viruses?

Correct : A. Icosahedral, with envelope, ds DNA

19. Which one of the following produce typical fried egg appearance colonies on solid media?

Correct : C. Mycoplasms

20. An organism that is osmophilic and has a specific requirements for sodium chloride resembles

Correct : A. Halophile

21. A population of cells derived from a single cell are called

Correct : B. Clones

22. Hetrolactic acid bacteria produce

Correct : D. Lactic acid + alchohol + CO2

23. In which of the follwing microorganism, conjunction tube was not produced during conjunction process?

Correct : A. Thiobaillus thiooxidence

24. Which of the following is most similar to Rickettsia and Chlamydia?

Correct : C. Mycobacterium

25. How would you distinguish pseudomonas species from E-cloi?

Correct : C. Glucose fermentation Vs Respiration

26. Which of the following is pathogenic to humans?

Correct : C. Prototheca

27. Tumer inducing plasmids are extensively used in production of

Correct : C. Transgenic plants

28. The viruses that live as parasites on bacteria are

Correct : C. Bacteriophages

29. The anthrax disease is most frequently infected from

Correct : D. Both a and b

30. The colonies produced by Pseudomonas on Mac Conkey’s medium are

Correct : C. Pale colored

31. Staining material of gram positive bacterium is

Correct : C. Crystal violet

32. The pigment present in red algae is

Correct : D. Chlorophyll + phycobilin

33. During mitosis, synapsis occurs in the phase called

Correct : C. Prophase

34. Which of the following change is a transition?

Correct : D. None of these

35. Citrus canker is caused by

Correct : A. Phytomona

36. Bacter ia that are respons ib le for fermentation of dairy milk are

Correct : C. Lactobacillus

37. The fungal disease that affect the internal organs and spread through the body are called

Correct : B. Systemic mycoses

38. The staining technique used to stain the metachromatic granules of Corynebacterium

Correct : B. Alberts stain

39. The orderly increase in all components of protoplasm of a cell is called

Correct : C. Growth

40. The causative organism of cholera, i.e., Vibrio show the movement called

Correct : B. Darting movement

41. Erythrocytes will get its ATP energy only by

Correct : A. Glycolysi

42. Virus will contain

Correct : D. DNA or RNA

43. The bacterial pili mainly contain

Correct : C. Proteins

44. The wonder drug of second world war is produced by

Correct : B. Fungi

45. Role of bacteria in carbon cycle is

Correct : C. Breakdown of organic compounds

46. Centromere is that part of chromosome where

Correct : C. Chromatids are attached

47. Somatic cell of the adult body are haploid in many except

Correct : C. Fungi

48. Congential diseases are

Correct : A. Diseases present at birth

49. The enzyme needed in biological systems for joining two molecules is called

Correct : C. Polymerases

50. Meosomes are the part of

Correct : A. Plasma membrane

51. All prokaryotes are surrounded by a cell wall except

Correct : A. Mycoplasm

52. Enzyme hydrolyzing bacterial cell wall

Correct : D. Lysozyme

53. Cows can digest straw because they contain

Correct : A. Cellulose hydrolyzing microorganisms

54. The nucleus controls protein synthesis in the cytoplasm by sending

Correct : C. m RNA molecule

55. The site of energy production in a cell

Correct : D. Mitochondria

56. Thylakoid is present in

Correct : B. Chloroplast

57. Which one of the following bacteria has found extensive use in genetic engineering work in plants?

Correct : D. Agrobacterium tumefaciens

58. Maximum application of animal cell culture technology today is in the production of

Correct : C. Vaccines

59. Bacterial ribosomes are composed of

Correct : C. Protein and rRNA

60. The potorespiration involves

Correct : C. Glycolate cycle

61. Bioleaching is done by

Correct : B. Bacteria

62. Inclusion bodies diagnostic of rabies are called

Correct : C. Negri bodies

63. Which of the following genera is most likely to contain organisms capable of surviving high temperature?

Correct : C. Torula

64. The major role of minor elements inside living organisms is to act as

Correct : A. Co-factors of enzymes

65. The apparatus used to ma inta in a continuous culture

Correct : A. Chemostat

66. The test used to detect the deamination of the amino acids by bacteria

Correct : A. Nessler’s reagent test

67. Diphtheria is caused by

Correct : A. Corynebacterium

68. Koplic spots observed in the mucous membrane is characteristic feature of the disease

Correct : C. Mumps

69. A bacterium containing prophage is called as

Correct : B. Lysogen

70. The most infectious food borne disease is

Correct : D. Botulism

71. An example for common air borne epidemic disease

Correct : A. Influenza

72. Vrial genome can become integrated into the bacterial genomes are known as

Correct : B. Temperatephage

73. Rancidity of stored foods is due to the activity of

Correct : D. Lipolytic microbes

74. Virion means

Correct : C. Incomplete particles

75. Virulence of the microorganisms can be reduced by

Correct : A. Attenuation

76. The test used for detection of typhoid fever

Correct : A. WIDAL test

77. Bacteriophage capable of only lytic growth is called

Correct : A. Temperate

78. Diphtheria bacillus is otherwise known as

Correct : B. Kleb’s hofflers bacillus

79. Acridine dyes are more effective against

Correct : A. Gram positive

80. In bacteria pigment bearing structures are

Correct : D. Chromatophores

81. The procedure of differential staining of bacteria was developed by

Correct : B. H.C. Gram

82. Intermediate group of pathogen between bacteria and viruses which are intracellular parasites are called

Correct : B. Rickettsias

83. Bacillus is an example of

Correct : A. Gram positive bacteria

84. Amoebic dysentery in humans is caused by

Correct : D. Entamoeba histolytica

85. Viral genome that can become integrated into bacterial genome is called

Correct : A. Prophage

86. Cytochromes are

Correct : C. Electron acceptors

87. The ce l ls hav ing F p lasm id in the chromosomes were termed as

Correct : A. Hfr

88. Recombination process occurring through the mediation of phages is

Correct : B. Transduction

89. Mordant used in grams staining is

Correct : B. Iodine

90. Parasitic form must contain

Correct : B. Cell-wall

91. Gram staining is an example for

Correct : D. None of these

92. Following Cocci are non-motile except

Correct : A. Staphylococcu

93. Aspergillus fumigatus can infect

Correct : B. Animals

94. Enterotoxin responsible for food poisoning is secreted by

Correct : D. Straphylococci

95. Autolysis is done by

Correct : B. Lysosomes

96. A facultative anaerobic is

Correct : D. Ordinarily an aerobe but can grow in absence of O2

97. The percentage of O2 required by moderate anaerobe is

Correct : C. 2 – 8%

98. Interferon is formed by

Correct : D. All of these

99. Pigment bearing structure of bacteria are

Correct : D. Chromophores

100. Spirochete is

Correct : C. Treponema pallidum