Download BFUHS MBBS 2nd Year MBN205 Microbiology A Dec 2023 mcq Question Paper

Total No. = 03 pages
Q.P. Code: MBN205
M.B.B.S. 2nd Prof.
(New Scheme w.e.f. 2019 admission onwards)
BF/2023/06

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Microbiology ? A
M.M. : 100
Time : 3 Hours(First 30 Min. for MCQs)
Note: 1.
Use OMR Sheet to answer Multiple Choice Questions(MCQs).

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2.
Attempt all questions. Illustrate your answers with suitable diagrams
3.
NO SUPPLEMENTARY SHEET SHALL BE ALLOWED/PROVIDED
4.

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The student must write Q.P. Code in the space provided on OMR Sheet and the Title page of
the Answer Book.
Q.1
MCQs (Attempt on OMR sheet)
[1x20]

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1.
Most antigenic component in a microbe is
a.
Lipid
b.

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Protein
c.
Carbohydrate
d.
Glycolipid

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2.
Which immunoglobin has the least concentration in the human body?
a.
IgG
b.

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IgM
c.
IgA
d.
IgE

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3.
VDRL test is based on
a.
Precipitation reaction
b.

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Agglutination reaction
c.
ELISA
d.
CFT

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4.
What is the percentage of agar in most solid media?
a.
0.2%
b.

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2%
c.
4%
d.
6%

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5.
Following is an example of enrichment medium
a.
Alkaline peptone water
b.

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Chocolate agar
c.
Blood agar
d.
Nutrient agar

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6.
Concentration of glutaraldyhyde used in high level disinfection of endoscopes is
a.
0.5%
b.

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1%
c.
1.5%
d.
2%

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7.
PCR is used to
a.
Detect target plasmids
b.

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Amplify small amount of DNA
c.
Seal the cut ends of DNA
d.
Cleave the bacterial plasmid

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8.
Antibiotic sensitivity testing is done on
a.
Blood agar
b.

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MacConkey agar
c.
Chocolate agar
d.
Mueller Hinton agar

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9.
Horizontal transfer of `R' factor is by
a.
Transduction
b.

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Transformation
c.
Conjugation
d.
Fusion

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10.
Superantigen is produced by
a.
Staphylococcus aureus
b.

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Streptococcus pneumonia
c.
Pseudomonas
d.
Clostridium

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11.
A 15 year old girl had splenomegaly, leucopenia, fever and died in a few days. Longitudinal ulcers
were found in the intestine. What could be the probable diagnosis?

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a.
Typhoid
b.
Tuberculosis
c.

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Amoebiasis
d.
PUO
12.
True about B. recurrentis is

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a.
Causes leptospirosis
b.
Water born disease
c.

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Transmitted by louse
d.
Transmitted by flea
13.
Weil's disease is caused by

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a.
Leptospira
b.
Proteus
c.

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Yersinia
d.
Borrelia
14.
Antibody dependent enhancement is a feature of

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a.
Dengue hemorrhagic fever
b.
SSPE
c.

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SSSS
d.
Enteric fever
15.
Cerebral malaria is caused by

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a.
P.falciparum
b.
P.vivax
c.

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P.ovale
d.
P.malariae

16.

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Traveler's diarrhea is caused by
a.
ETEC
b.
EHEC

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c.
EPEC
d.
EIEC
17.

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A stool examination was carried which showed organism with darting motility. Which of the following
may be present in stool?
a.
V.cholerae
b.

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Shigella
c.
Salmonella
d.
E.coli

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18.
Space vehicle virus is
a.
Reovirus
b.

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Retrovirus
c.
Rhabdovirus
d.
Adenovirus

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19.
Largest protozoan is
a.
E.histolytica
b.

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B.coli
c.
E.coli
d.
P.vivax

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20.
If the sample of a patient is HIV positive. The report can be given to
a.
Patient himself
b.

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His spouse
c.
His relative
d.
anyone

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Q.2.
A 10 year old girl gets severe bronchial asthma attacks every year in the month of April. She stays
close to a large garden, which has plenty of flowering trees.
a.

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What is the likely cause of her respiratory disorder?
b.
Describe the pathogenesis of the above disorder.
c.
Enumerate a specific test to make a definitive diagnosis in the above case.

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d.
What is the treatment approach of the above case?
[2+4+2+4]
Q.3.
Write short notes on:-

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[5x4]
a.
IgA
b.
Koch's postulates

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c.
Bleaching powder
d.
R-Plasmid
Q.4.

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Explain in short:-
[3x5]
a.
Indirect immunofluorescence test
b.

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Catalase test
c.
Real time PCR
d.
Differences between amebic and bacillary dysentery

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e.
Plasmodium LDH test
Q.5.
Short answers (applied aspects):-
[6x3]

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a.
Enterotoxigenic E. coli
b.
Hepatitis B vaccine
c.

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Lab diagnosis of enteric fever
Q.6.
Write in brief about:-
[5x3]
a.

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Strategy III in HIV testing
b.
Pathogenicity of ascariasis
c.
A positive report of HIV is given to a client without counseling. Explain the lapse.

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