Microbiology

1. Microbiology
1. Bacterial cell wall composed of ---------------------.
a. Chitin b. Cellulose c. Peptidoglycan d. Protein e. Lipid
2. Organ of motility, made from flagellin ae called
a. Flagella b. Pilli c. Fimbriae d. All e. None of these
3. A slime layer composed mostly of high molecular weight polysaccharides -------------------------
a. Flagella b . Pilli c . Fimbriae d . Capsule e. None of these
4. The compound which are found only in Gram positive bacteria
a. LPS b. Peptidoglycan c. Teichoic acid d.All of the above e.None of these
5. Bacteria which prefer growing in the presence of oxygen, but can continue to grow without
it.
a. Obligate anaerobe b.Facultative anaerobe c. Obligate aerobe d.Microphilic
E. All of the above
6. Those bacteria which bacteria grow by absence of oxygen
a. Obligate anaerobe b. Facultative anaerobe c. Obligate aerobe d.Microphilic
e. All of the above
7. Those bacteria which derive energy from breaking down complex organic compounds are
called
a. Autotroph b. Heterotroph c. Saprophytic d. Chemoautotrophic e .None of these
8. Bacteria which fix carbon dioxide to make their own food source
a. Autotroph b. Heterotroph c. Saprophytic d. Chemoautotrophic E.None of these
9. Bacteria which Grow best at pH (7-7.2) Most human-animal commensales& pathogens
a. Neutrophilic b. Acidophilic c. Mesophilic d .Psychrophilic e. All of the above
10. Bacteria which Grow best pH < 5 pH
a. Neutrophilic b. Acidophilic c. Mesophilic d .Psychrophilic e.All of the above
11. Bacteria which Grow best at (20-40C). Most human-animal commensales& pathogens
a. Neutrophilic b. Acidophilic c. Mesophilic d .Psychrophilic e.All of the above
12. Bacteria which Grow best Temp (<10C).
a.Neutrophilic b. Acidophilic c. Mesophilic d. Psychrophilic e. Thermophilic
13. Whooping cough ( pertussis) is a symptoms of ---------------------------- infection.
a. Brucella b. E.coli c. S.pneumonia d. S.pyogenes e. Bordetella

2. 14. Osteomyelitis is used for the Infection of
a. Bones b. Muscle c .Kidney d. Liver e.stomach
15. the animal reservoir of Brucella suis is--------------------------
a. sheep b. Goat c. Cattle d. Pigs e. All of the above
16. The undulating ( rising and falling) fever pattern occur in --------------------------- infection
a. Brucella b. E.coli c. S.pneumonia d.S.pyogenes e. Bordetella
17. Which serotype is most severe in case of Influenza
a. Serotype A b. Serotype B c. Serotype C d. Serotype D e. Serotype E
18. --------------------------------- grow slowly as compared to other bacteria
a. E.coli b. S.pneumonia c. S.pyogenes d. Bordetella e. M. Tuberculosis
19. Acid Fast Stainingof sputum or other specimen are used for identification of Bacteria
a. E.coli b. S.pneumonia c. S.pyogenes d. Bordetella e. M. Tuberculosis
20. Encircle multidrug resistant Bacteria
a. E.coli b. S.pneumonia c. S.pyogenes d. Bordetella e.M. Tuberculosis
21. Most common fungal pathogen caused nosocomial infection?
a. Screlotium species b. Alternaria species c. Candida species d. Trichoderma
species e. All of these
22. Candida Albicans Account for -------------- % of nosocomial fungal infections.
a. 50 b. 70 c. 80 d. 90 e .100
23. Most common air borne soil pathogen---------------------
a. Screlotium species b. Alternaria species c. Candida species d. Trichoderma species
b. Aspergillus species
24. Reasons Fungi Are Different From Plants
a. fungi lack chlorophyll b. fungi are not photosynthetic c. they never reproduce by
seeds d. most fungi have cell walls made of chitin e. All of the above
25. Aspergillus spores are easily airborne and we normally breathe in -------------spores daily.
a. 100-200 b. 100- 300 c. 100-400 d. 200-400 e. 200-300
26. The most common causing allergic disease are
a. Aspergillus fumigates b. Aspergillus flavus c. Aspergillus clavatus d.Aspergillus
Niger e. a and c
27. Genetically modified is used for the large scale production of lipases used in biological

3. washing powders.
a. A. Niger b. A. Flavus c. A. Oryzae d. A. Fumigatus e. All of these
28. -------------------- is used in the commercial production of citric acid, which is widely used in
the food industry
a. A. Niger b. A. Flavus c. A. Oryzae d. A. Fumigatus e. All of these
29. Aspergillus contains about -------------------genes.
a. 5,000 b. 10,000 c. 20,000 d. 25,000 e. 30,000
30. Which one of the following is a catalase positive?
a. Staphylococcus Aureus b. Streptococcus pyogenes c. Streptococcus pneumonia
b. Streptococcus mutus e. Streptococcus bovis
31. Which of the following shows Alpha haemolytic pattern on agar medium
a. Staphylococcus Aureus b. Streptococcus pyogenes c. Streptococcus pneumonia
d. Streptococcus mutus e. Streptococcus bovis
32. Beta hemolysis produce --------------------- zone around their colonies.
a. Greenish b. Clear c. No zone d. Red e. Pink
33. Optochin disk are used for the identification of --------------------------
a. Staphylococcus Aureus b. Streptococcus pyogenes c. Streptococcus pneumonia
d. Streptococcus mutus e. Streptococcus bovis
c. Streptococcus pyogenes are identified by performing
a. Gram staining b. Catalase negative c. Bacitracin sensitivity d. PYR Test
d. All of the above
34. Pnumolysin protein are present in
a. Staphylococcus Aureus b. Streptococcus pyogenes c. Streptococcus pneumonia
d. Streptococcus mutus e. Streptococcus bovis
35. Which bacteria resemble paired kidney beans?
a. Staphylococcus Aureus b. Streptococcus pyogenes c. Streptococcus pneumonia
D. Streptococcus mutus e. Neisseria
36. Sexually transmitted bacteria
a. Staphylococcus Aureus b. Streptococcus pyogenes c. Streptococcus pneumonia
d. Streptococcus mutus

4. e. Neisseria
37. Which one of the following is a gram negative bacteria
a. Staphylococcus Aureus b. Streptococcus pyogenes c. Streptococcus pneumonia
d. Streptococcus mutus e. Neisseria
38. The gram negative bacteria most numerous in the oral cavity are
a. Streptococci b. Veillonellae c. Salmonella d. Eikenella e. E.coli
39. Shigella cause:
a. Dysentery b. Enteric fever c. Typhoid fever d. Septicemia e. Abscesses
40. The bacteria --------------------------- have low ID50.
a. E.coli b. Shigella c. Salmonella d. Pseudomonas e. Vibrio cholera
41. The four F’s – finger, food, flies and feces are the principle factors of transmission:
a. E.coli b. Shigella c. Salmonella d. Pseudomonas e. Vibrio cholera
42. The organism are curved” Comma shaped”
43. E.coli b. Shigella c. Salmonella d. Pseudomonas e. Vibrio cholera
44. Helicobacter pylori causes:
a. Gastritis b. Peptic ulcer c. Nosocomial infection d. Cholera e. Both a and b
45. Hypokalemia refers:
a. Deficiency of K in blood serum b. Deficiency of Ca in blood serum
c. Deficiency of Na in blood serum c. Deficiency of Zn in blood serum
e. Deficiency of Cu in blood serum
46. Gastric and peptic ulcer are characterized by recurrent pain in the upper abdomen,
frequently accompanied by bleeding into gastrointestinal tract.
a. Helicobacter b. Klebsiella c. Shigella d. Vibrio cholera e. E.coli
47. Pseudomonas aeruginosa causes infections:
a. Sepsis b. Pneumonia c. Urinary tract infection d. All of these e. None of
these
48. Pyocyanin, which can color the pus in a wound blue: characteristic feature of
a. Proteus b. Pseudomonas c. Helicobacter d. Influenza e. Vibrio cholera
49. Bacteria which is resistant to many antibiotics:
a. Proteus b. Pseudomonas c. Helicobacter d. Influenza e. Vibrio cholera

5. 1. Which of the following shows Alpha haemolytic pattern on agar medium
a. Staphylococcus Aureus b. Streptococcus pyogenes c. Streptococcus
pneumonia d. Streptococcus mutus e. Streptococcus bovis
50. Lockjaw are caused by
a. Staphylococcus Aureus b. Streptococcus pneumonia c. Neisseria
d. Clostridium tetani e. Clostridium botulinum
51. Clostridium perfringens causes diseases?
a. Gas gangrene b. Food poisoning c. Meningitis d. Vomiting e. a and b
52. spores of Clostridium perfringens are located in
a. Water b. Air c. Food d. Soil e. All of the above
53. Which diseases is associated with war wounds, automobile and motor cycle accident and
septic abortion
a. Gas gangrene b.. Food poisioning c. GIT infections d. Tetanus e. None
of these
54. The most common cause of urinary tract infection:
a. Salmonella b. Shigella c. Vibrio d. Coli e. All of the above
55. The most abundant facultative anaerobe in the colon and feces
56. Salmonella b. Shigella c. Vibrio d. Coli e. All of the above
57. Which strains of E.coli cause outbreak of neonatal diarrhoea.
a. O55 b. 0111 c. 066 d. a and b e. b and c
58. Encircle gram negative rod.
a. E.coli b. Staphylococcus c. Streptococcus pyogenes d. Streptococcus
pneumonia e. All of the above
59. Staphylococci typically occur in:
a. Pairs b. Chain c. Tetrads d. Grapes like cluster e. cubic
60. widal test is positive in:
a. salmonella infection b. pseudomonas infection c. shigella infection
d. klebsiella infection
61. influenza is caused by:
a. virus b. haemophilus c. vibrio d. Yersinia e. Shigella
62. Which of the following is characteristics only of viruses?

6. a. They are intracellular organism b. They affect the production of interferon and ae
sensitive to it c. They reproduce by binary fission d. They are saprophytes
63. Hepatitis C is a
a. Retrovirus b. Togavirus c. Flavivirus d. Filvovirus e. All of these
64. The term club fungiare used for
a. Chytridiomycota b. Zygomycota c. Ascomycota d.Basidiomycota
b. All of these
65. The term Sac Fungi are used for
a. Chytridiomycota b. Zygomycota c. Ascomycota d. Basidiomycota
b. All of these
66. The term zygote fungi are used for
a. Chytridiomycota b. Zygomycota c. Ascomycota d. Basidiomycota
b. All of these
67. Incubation period of Menngo cocci is …………………….days.
a. 2-5 days b. 2-10 days c. 10-20 days d. 10-15 days e. 1-3 days
68. Rickettsiae are ----------------- intracellular parasite
a. Obligate b. Facultative c. Anaerobe d. Aerobic e. None of these
69. Rocky Mountain spotted fever caused by
a. Coxiellaburnetti b. Rickettsia rickettsii c. Rickettsia d. All of these
b. None of these
70. Q fever caused by---------------------------------
a. Coxiellaburnetti b. Rickettsia rickettsii c. Rickettsia d. All of these e. None of
these
71. Vasculitis is a general term that refers to inflammation of---------------.
a. Muscle b. Stomach c. Blood vessels d. All body parts e. Legs
a. Gas gangrene
b. Food poisioning
69. influenza is caused by:
a. virus

7. b. haemophilus
c. vibrio
d. Yersinia
e. Shigella
70. Which of the following is characteristics only of viruses?
a. They are intracellular organism
b. They affect the production of interferon and ae sensitive to it
c. They reproduce by binary fission
d. They are saprophytes
71. Hepatitis C is a
a. Retrovirus
b. Togavirus
c. Flavivirus
d. Filvovirus
e. All of these
73. Transfusion transmitted disease are all except:
a. HIV
b. Hepatitis C
c. CMV
d. Tuberculosis
e. All of the above
a. Dysentery
b. Enteric fever
c. Typhoid fever
d. Septicemia
e. Abscesses
81. The bacteria --------------------------- have low ID50.
a. E.coli
b. Shigella
c. Salmonella

8. d. Pseudomonas
e. Vibrio cholera
82. The four F’s – finger, food, flies and feces are the principle factors of transmission:
a. E.coli
b. Shigella
c. Salmonella
d. Pseudomonas
e. Vibrio cholera
84. Helicobacter pylori causes:
a. Gastritis
b. Peptic ulcer
c. Nosocomial infection
d. Cholera
e. Both a and b
85. Hypokalemia refers:
a. Deficiency of K in blood serum
b. Deficiency of Ca in blood serum
c. Deficiency of Na in blood serum
d. Deficiency of Zn in blood serum
e. Deficiency of Cu in blood serum
86. Gastric and peptic ulcer are characterized by recurrent pain in the upper abdomen,
frequently accompanied by bleeding into gastrointestinal tract.
a. Helicobacter
b. Klebsiella
c. Shigella
d. Vibrio cholera
e. E.coli
87. Pseudomonas aeruginosa causes infections:
a. Sepsis
b. Pneumonia

9. c. Urinary tract infection
d. All of these
e. None of these
88. Pyocyanin, which can color the pus in a wound blue: characteristic feature of
a. Proteus
b. Pseudomonas
c. Helicobacter
d. Influenza
e. Vibrio cholera
91. Pharyngitis are caused by:
a. S.pyogenes
b. S.pnemoniae
c. S. Aureus
d. S. Epidermidis
e. All of the above
95. The genetic material of virus:
a. DNA
b. RNA
c. Either DNA or RNA
d. Both DNA and RNA
e. Neither DNA nor RNA
a. Strep throat
b. Rashes
c. Infection of the superficial layer of the skin
d. Rheumatic fever
e. Myositis
99. Russian botanist ---------------------- first discovered virus in an infected tobacco plant.
a. Stanley
b. Beijerink
c. Iwanowski

10. d. Sneath
e. Pasteur
100. The Latin binomial was first coined by a Swedish botanist:
a. Stanley
b. Beijerink
c. Iwanowski
d. Sneath
Linnaeus
1. Food poisoning is caused by
a. Clostridum tetani
b. Clostridum Welchi
c. Diptheria
d. Clostridium perfringens
2. AIDS is caused by
a. Retrovirus
b. Prion
c. Rhabdovirus
d. Retroprison
3. The mode of spread of tetanus neurotoxin from blood to brain is
a. Via lymphaties
b. Arterial blood
c. Cranial nerves
d. None of these
4. The first symptom of tetanus is
a. anxiety
b. Trismus
c. Anorexia
d. Dyspagia
5. The enzyme required for DNA from RNAtemplate:

11. a. RNA polymerase
b. Reverse transcriptase
c. DNA polymerased.
d. Terminal transferase
6. HIV can be transmitted through
a. Blood
b. Semen
c. Vaginal fluid
d. All of these
7. The genetic material in HIV is
a. ds DNA
b. ss DNA
c. s RNA
d. None of these
8. Protein particles which can infect are called
a. Virons
b. Prions
c. Nucleoida
d. None of these
9. Staining material of gram positive bacterium is
a. Fast green
b. Haematoxylon
c. Crystal violet
d. Safranin
10. Virus will contain
a. Cell membrane
b. Cell wall
c. DNA
d. DNA or RNA
11. Gram staining is an example for

12. a. Simple staining
b. Differential staining
c. Negative staining
d. None of these
12. A facultative anaerobic is
a. Only grow anaerobically
b. Only grow in the presence of O2
c. Ordinarily an anaerobe but can grow with O2
d. Ordinarily an aerobe but can grow in absence of O
13. Bacterial capsule is chemically composed of
a. Polypeptide
b. Polynucleotides
c. Polysaccharides
d. Polypeptides or polysaccharides
14. Cell-wall is
a. Thick in Gram positive than Gram negative
b. Thick in Gram negative than Gram positive
c. Equal in both
d. In Gram negative cell-wall is absent
15. The order of stains in Gram-staining procedure is
a. Crystal violet, Iodine solution, Alcohol, Saffranine
b. Iodine solution, Crystal Violet, Saffranine, Alcohol
c. Alcohol, Crystal Violet, Iodine solution, Saffranine
d. All of these
16. Capsulated forms of bacteria are
a. Virulent
b. A virulent
c. Useful
d. Symbiotic
17. Cholera vaccine gives protection for

13. a. 1 – 3 months
b. 3 – 6 months
c. 6 – 9 months
d. 9-12 month
18. Acid fast bacteria are
a. Neisseria
b. Staphylococci
c. Mycobacteria
d. All of the above
19. Techoic acid is
a. Found in the walls of Gram positive bacteria
b. Provide receptors for phages
c. Make up outer wall of Gram negative bacteria
d. Influence the permeability of the membrane
20. ----------------------bacteria, Grow best pH (7-7.2)
a. Neutrophilic
b. Acidophilic
c. Mesophilic
d. Psychrophilic
21. Any deviation from a condition of good health and well-being, are known as
a. Infection
b. disease
c. accident
d. injury
22. The ability of a microbe to cause disease
a. Pathogenicity
b. b. virulence
c. c. Disease
d. d. infection
23. An infection characterized by sudden onset, rapid progression, and often with severe

14. symptoms
a. Acute infection
b. chronic infection
c. clinical infection
d. latent infection
24. An infection that has spread to several regions or areas in the body of the host
a. Localized infection
b. systematic infection
d. cephalic infection
d. All of these
24. Presence of infectious bacteria is termed as
a. Bacteremia
b. Viremia
c. fungemia
d. Septicemia
25. Inflammation of the heart chambers, are termed as
a. Pharyngitis
b. Gastroenteritis
c. Endocarditis
d. a and b
26. A disease condition that is normally found in a certain percentage of a population
a. Pandemic Disease
b. Endemic Disease
c. Epidemic Disease
d. all of these
27. Lethal Dose of a microbes toxin that will kill 50% of experimentally inoculated test animal
a. LD50
b. ID50
c. CD50

15. d. All of these
28. The exotoxin interfere with normal nerve impulses are known as
a. Cytotoxins
b. Neurotoxins
c. Enterotoxins
d. none of these
29. A symbiotic relationship in which both species benefit
a. Mutualism
b. Commensalism
c. Parasitism
d. all of these
30. HIV can be transmitted through
a. Blood
b. Semen
c. Vaginal fluid
d. All of these
31. Bacterial cell wall composed of ---------------------.
a. Chitin
b. b. Cellulose
c. c. Peptidoglycan
d. d. Protein
e. e. Lipid
32. Organ of motility, made from flagellin ae called
a. Flagella
b. b. Pilli
c. c. Fimbriae
d. d. All
e. e. None of these
33. A slime layer composed mostly of high molecular weight polysaccharides
-------------------------

16. a. Flagella
b. Pilli
c. Fimbriae
d. Capsule
e. None of these
34. The compound which are found only in Gram positive bacteria
a. LPS
b. Peptidoglycan
c. Teichoic acid
d. All of the above
e. None of these
35. Bacteria which prefer growing in the presence of oxygen, but can continue to grow
without it.
a. Obligate anaerobe
b. Facultative anaerobe
c. Obligate aerobe
d. Microphilic
e. All of the above
36. Those bacteria which bacteria grow by absence of oxygen
a. Obligate anaerobe
b. Facultative anaerobe
c. Obligate aerobe
d. Microphilic
e. All of the above
37. Those bacteria which derive energy from breaking down complex organic
compounds are called
a. Autotroph
b. Heterotroph
c. Saprophytic
d. Chemoautotrophic

17. e. None of these
38. Bacteria which fix carbon dioxide to make their own food source
a. Autotroph
b. Heterotroph
c. Saprophytic
d. Chemoautotrophic
e. None of these
39. Bacteria which Grow best at pH (7-7.2) Most human-animal commensales &
pathogens
a. Neutrophilic
b. Acidophilic
c. Mesophilic
d. Psychrophilic
e. All of the above
40. During AIDS, HIV infects
a. CD3 lymphocytes b. CD4 lymphocytes c. CD2 lymphocytes d. B lymphocytes
41. Bacteria which Grow best at (20-40C). Most human-animal commensales &
pathogens
a. Neutrophilic
b. Acidophilic
c. Mesophilic
d. Psychrophilic
e. All of the above
42. Bacteria which Grow best Temp (<10C).
a. Neutrophilic
b. Acidophilic
c. Mesophilic
d. Psychrophilic
e. Thermophilic
43. Beta hemolysis produce --------------------- zone around their colonies.

18. a. Greenish
b. Clear
c. No zone
d. Red
e. Pink
44. Sexually transmitted bacteria
a. Staphylococcus Aureus
b. Streptococcus pyogenes
c. Streptococcus pneumonia
d. Streptococcus mutus
e. Neisseria
45. Hypokalemia refers:
a. Deficiency of K in blood serum
b. Deficiency of Ca in blood serum
c. Deficiency of Na in blood serum
d. Deficiency of Zn in blood serum
e. Deficiency of Cu in blood serum
46. Clostridium perfringens causes diseases?
a. Gas gangrene
b. Food poisoning
c. Meningitis
d. Vomiting
e. a and b
47. spores of Clostridium perfringens are located in
a. Water
b. Air
c. Food
d. Soil
e. All of the above

19. 48. Which diseases is associated with war wounds, automobile and motor cycle accident
and septic abortion
a. Gas gangrene
b. Food poisioning
c. GIT infections
d. Tetanus
e. None of these
49. The term club fungi are used for
a. Chytridiomycota
b. Zygomycota
c. Ascomycota
d. Basidiomycota
e. All of these
50. The term Sac Fungi are used for
a. Chytridiomycota
b. Zygomycota
c. Ascomycota
d. Basidiomycota
e. All of these
51. The Latin binomial was first coined by a Swedish botanist:
a. Stanley
b. Beijerink
c. Iwanowski
d. Sneath
e. Linnaeus
52. Impetigo refers to:
a. Strep throat
b. Rashes
c. Infection of the superficial layer of the skin
d. Rheumatic fever

20. e. Myositis
53. Gastric and peptic ulcer are characterized by recurrent pain in the upper abdomen,
frequently accompanied by bleeding into gastrointestinal tract.
a. Helicobacter
b. Klebsiella
c. Shigella
d. Vibrio cholera
e. E.coli
54. Pseudomonas aeruginosa causes infections:
a. Sepsis
b. Pneumonia
c. Urinary tract infection
d. All of these
e. None of these
55. Pyocyanin, which can color the pus in a wound blue: characteristic feature of
a. Proteus
b. Pseudomonas
c. Helicobacter
d. Influenza
e. Vibrio cholera
56. Bacteria which is resistant to many antibiotics:
a. Proteus
b. Pseudomonas
c. Helicobacter
d. Influenza
e. Vibrio cholera
57. Gamma hemolysis produces
a. Greenish zone
b. Clear zone
c. No zone

21. d. Red zone
e. Yellow zone
58. Pharyngitis are caused by:
a. S.pyogenes
b. S.pnemoniae
c. S. Aureus
d. S. Epidermidis
e. All of the above
59. Koch was a ------------------------- physician who played a major role in establishing that
microorganism cause specific disease.
a. German
b. French
c. American
d. Indian
e. Pakistani
60. ICTV stands for
a. International conference on tobacco virus
b. International committee on taxonomy of viruses
c. International college for teaching virus
d. None of these
e. A and B
61. Nomenclature is a --------------------------- word
a. French
b. Greek
c. Latin
d. English
e. Persian
62. The genetic material of virus:
a. DNA
b. RNA

22. c. Either DNA or RNA
d. Both DNA and RNA
e. Neither DNA nor RNA
63. Pus forming Bacteria:
a. E.coli
b. Staphylococcus
c. Streptococcus pyogenes
d. Streptococcus pneumonia
e. All of the above
64. Which of the following ae also called Flesh eating Bacteria:
a. E.coli
b. Staphylococcus
c. Streptococcus pyogenes
d. Streptococcus pneumonia
e. Clostridium species
65. Transfusion transmitted disease are all except:
a. HIV
b. Hepatitis C
c. CMV
d. Tuberculosis
e. All of the above
66. All of the following are DNA virus except:
a. Herpes virus
b. Polio virus
c. Pox virus
d. Papilloma virus
e. A and C
67. Bacteriophages are:
a. Bacteria
b. Virus

23. c. Plasmid
d. Neither bacteria nor virus
e. Mycoplasma
68. Small pox is caused by :
a. Variola virus
b. Vaccinia virus
c. Enterovirus
d. Picona virus
e. Herpes virus
69. Major serum immunoglobulin is:
a. IgG
b. IgA
c. IgM
d. IgE
e. None of these
70. Immunoglobulin are:
a. Polysaccharide
b. Glycoprotein
c. Protein
d. Amino acids
e. Lipid
71. The gram negative bacteria most numerous in the oral cavity are
a. Streptococci
b. Veillonellae
c. Salmonella
d. Eikenella
e. E.coli
72. Shigella cause:
a. Dysentery
b. Enteric fever

24. c. Typhoid fever
d. Septicemia
e. Abscesses
73. The bacteria --------------------------- have low ID50.
a. E.coli
b. Shigella
c. Salmonella
d. Pseudomonas
e. Vibrio cholera
74. The four F’s – finger, food, flies and feces are the principle factors of transmission:
a. E.coli
b. Shigella
c. Salmonella
d. Pseudomonas
e. Vibrio cholera
75. The organism are curved” Comma shaped”
a. E.coli
b. Shigella
c. Salmonella
d. Pseudomonas
e. Vibrio cholera
76. Helicobacter pylori causes:
a. Gastritis
b. Peptic ulcer
c. Nosocomial infection
d. Cholera
e. Both a and b
77. Encircle gram negative rod.
a. E.coli

25. b. Staphylococcus
c. Streptococcus pyogenes
d. Streptococcus pneumonia
e. All of the above
78. Staphylococci typically occur in:
a. Pairs
b. Chain
c. Tetrads
d. Grapes like cluster
e. cubic
79. Widal test is positive in:
a. salmonella infection
b. pseudomonas infection
c. shigella infection
d. klebsiella infection
80. influenza is caused by:
a. virus
b. haemophilus
c. vibrio
d. Yersinia
e. Shigella
81. Which of the following is characteristics only of viruses?
a. They are intracellular organism
b. They affect the production of interferon and ae sensitive to it
c. They reproduce by binary fission
d. They are saprophytes
82. Hepatitis C is a
a. Retrovirus
b. Togavirus

26. c. Flavivirus
d. Filvovirus
e. All of these
83. -------------------- is the zone of strong contamination
a. Polisaprogenic
b. Mesosaprogenic
c. Oligosaprogenic
d. A and B
e. None of these
84. Which one of the following is a huge zoological garden
a. River
b. Human
c. Lawn
d. Food
e. Milk
85. The ----------------is change of a quantitative relation and composition of a normal
microflora of an organism, mainly of it intestine.
a. Microbiocenosis
b. Microecology
c. Biotope
d. Parasitism
e. Dysbacteriosis
86. The zone in which the quantity of bacteria changes from 10 up to 1000 in one ml.
a. Polisaprogenic
b. Mesosaprogenic
c. Oligosaprogenic
d. A and B
e. None of these
87. Which one of the following bacteria grow slowly as compared to other bacteria
a. Influenza

27. b. H. pylori
c. S.pyogenes
d. M. tuberculosis
e. S. aureus
88. Acid Fast Staining are used for
a. Influenza
b. H. pylori
c. S.pyogenes
d. M. tuberculosis
S. aureus
89. Whooping cough ( pertussis) is a symptoms of ---------------------------- infection.
a. Brucella
b. E.coli
c. S.pneumonia
d. S.pyogenes
e. Bordetella
90. Osteomyelitis is used for the Infection of
a. Bones
b. Muscle
c. Kidney
d. Liver
e. stomach
91. the animal reservoir of Brucella suis is--------------------------
a. sheep
b. goat
c. cattle
d. Pigs
e. All of the above
92. The undulating ( rising and falling) fever pattern occur in ---------------------------
infection

28. a. Brucella
b. E.coli
c. S.pneumonia
d. S.pyogenes
e. Bordetella
93. Which serotype is most severe in case of Influenza
a. Serotype A
b. Serotype B
c. Serotype C
d. Serotype D
e. Serotype E
94. Encircle multidrug resistant Bacteria
a. E.coli
b. S.pneumonia
c. S.pyogenes
d. Bordetella
e. M. Tuberculosis
95. Reasons Fungi Are Different From Plants
a. fungi lack chlorophyll
b. fungi are not photosynthetic
c. they never reproduce by seeds
d. most fungi have cell walls made of chitin
e. All of the above
96. The fungi that act as recyclers of dead organic matter, obtaining food from this
material
a. Saprophytes
b. Autotroph
c. Heterotroph
d. All of the above
e. None of these

29. 97. Sporangiophores is the reproductive organ of ------------------
a. Bacteria
b. Fungi
c. Algae
d. Virus
e. Plant
98. Relationship between plants root and fungus are called
a. Mycorrhizae
b. Lichens
c. Symbiont
d. Mutualism
e. Commensalism
99. Relationship between fungus and Alga are called
a. Mycorrhizae
b. Lichens
c. Symbiont
d. Mutualism
e. Commensalism
100. There are ----------------------- main types of lichen.
a. 2
b. 3
c. 4
d. 5
e. 6
101. The term club fungi are used for
a. Chytridiomycota
b. Zygomycota
c. Ascomycota
d. Basidiomycota
e. All of these

30. 102. The term Sac Fungi are used for
a. Chytridiomycota
b. Zygomycota
c. Ascomycota
d. Basidiomycota
e. All of these
103. The term zygote fungi are used for
a. Chytridiomycota
b. Zygomycota
c. Ascomycota
d. Basidiomycota
e. All of these
104. Meningo cocci Belong to Kingdom ………………………….
a. Bacteria
b. Fungi
c. Vius
d. Algae
e. PLant
105. Incubation period of Menngo cocci is …………………….days.
a. 2-5 days
b. 2-10 days
c. 10-20 days
d. 10-15 days
e. 1-3 days
106. Rickettsiae are ----------------- intracellular parasite
a. Obligate
b. Facultative
c. Anaerobe
d. Aerobic
e. None of these

31. 107. Rocky Mountain spotted fever caused by
a. Coxiella burnetti
b. Rickettsia rickettsii
c. Rickettsia
d. All of these
e. None of these
108. Q fever caused by---------------------------------
a. Coxiella burnetti
b. Rickettsia rickettsii
c. Rickettsia
d. All of these
e. None of these
109. Vasculitis is a general term that refers to inflammation of---------------.
a. Muscle
b. Stomach
c. Blood vessels
d. All body parts
e. legs
110. Pnumolysin protein are present in
a. Staphylococcus Aureus
b. Streptococcus pyogenes
c. Streptococcus pneumonia
d. Streptococcus mutus
e. Streptococcus bovis
111. Which bacteria resemble paired kidney beans?
a. Staphylococcus Aureus
b. Streptococcus pyogenes
c. Streptococcus pneumonia
d. Streptococcus mutus
e. Neisseria

32. 112. Sexually transmitted bacteria
a. Staphylococcus Aureus
b. Streptococcus pyogenes
c. Streptococcus pneumonia
d. Streptococcus mutus
e. Neisseria
113. Which one of the following is a gram negative bacteria
a. Staphylococcus Aureus
b. Streptococcus pyogenes
c. Streptococcus pneumonia
d. Streptococcus mutus
e. Neisseria
114. widal test is positive in:
a. salmonella infection
b. pseudomonas infection
c. shigella infection
d. klebsiella infection
115. Common fungal infection that can cause a red or silvery ring like rash on the skin
a. Ringworm
b. Impetigo
c. Candidiasis
d. Cellulitis
e. Aspergilloses
116. Hair disease caused by fungus called
a. Mycetoma
b. Piedra
c. Candidiasis
d. Cellulitis
e. Aspergilloses
117. One of the common fungal disease of man is

33. a. Plaque
b. Cholera
c. Ringworm
d. Typhoid
118. Athele’s foot is caused by a member of
a. Yeast
b. Fungi imperfecti
c. Basidiomycetes
d. Zygomycetes
119. Fungi producing usually eight spores in a sac like structure belong to
a. Dueteromycetes
b. Basidiomycetes
c. Ascomycetes
d. Zygomycetes
e. None of these
120. Candida may effect
a. Mouth
b. Intestinal tract
c. Skin
d. All of them
e. None of them
121. Causative agent of Scarlet fever:
a. Staphylococcus aureus
b. Streptococcus viridans
c. Stre. pyogens
d. None of these
122. Rheumatic fever is most commonly caused by
a. Str. viridans
b. Str. pyogenes
c. Stph. aures

34. d. None of these
123. Penicillin is the drug of choice for
a. Scarlet fever
b. Whooping cough
c. Brucellosis
d. Cholera
124. Gonorrhoea is
a. Air borne disease
b. Water borne disease
c. Sexually transmitted venereal disease
d. Both a and c
125. Neisseria gonorrhoeae causes
a. Urethritis
b. Conjuctivitis
c. Arthritis
d. All of the above
126. Fungi producting mycelium are called
a. Moulds
b. Filamentous fungi
c. Both a and b
d. Yeasts
127. Candidiasis is caused by
a. Candida albicans
b. Aspergillus spp.
c. E. floccosum
d. M. audouinii
128. Candida albicans is capable to form
a. Single cells
b. Pseudomonas
c. Multicellular forms

35. d. None of these
129. Causative agent of syphilis
a. T. pallidum
b. T. pertenue
c. T. carateum
d. T. endemicum
130. Food poisoning is caused by
a. Clostridum tetani
b. Clostridum Welchi
c. Diptheria
d. Clostridium botulinum
131. Triple toxoid vaccine gives protection against
a. Diphtheria, tetanus and rabies
b. Tetanus, whooping cough, Tuberculosis
c. Whooping cough, tetanus and Diphtheria
d. Whooping cough, cancer and T.B.
132. The following are true about Rickettsiae.
a. Unicellular organisms
b. Prokaryotic intracellular parasites
c. Presence of 70 S ribosomes
d. It causes hemolysis in human beings
e. Gram negative plemorphic rods
133. Main symptom of tuberculosis is
a. Tubercle formation
b. Liquid formation
c. Both a and b
d. None of these
134. BCG vaccine is for the prevention of
a. Brucellosis
b. Diphtheria

36. c. Botulism
d. Tuberculosis
135. Which virus was first observed?
a. Hepatitis Virus
b. TMV
c. Cauliflower mossaic virus
d. None of these
136. Mycotoxins are produced by
a. Bacteria
b. Fungi
c. Algae
d. Protozoans
137. Virulent factor in pneumococcus is
a. Cell wall
b. Capsule
c. Mesosomes
d. Endotoxins
138. Cerebral malaria is caused by
a. Plasmodium vivox
b. P.ovale
c. P.falsiparum
d. P.malaria