Download BDS Ist YEAR EXAMINATION 2008-09

MBBS II (Second) Professional Examination 2011-12
Course Code:MBS202
Paper ID: 0312105
Microbiology - I
Time: 2 Hours 40 Minutes
Max Marks: 30
Note: Attempt all questions. Draw proper diagrams to support
your answer.
Part ‘B’
1.
Enumerate bacterial agents causing meningitis. Discuss the
laboratory diagnosis of meningitis under the following
headings-collection and transport of specimen, microscopy,
isolation and identification and antigen detection.
(7)
2.
Classify streptococci. Enumerate virulence factors and
diseases caused by streptococcus pyogenes. Discuss the
pathogenesis and laboratory diagnosis of sore throat.
(7)
3.
Write short notes on:
Structure and function of bacterial capsule
Categories and segregation of hospital waste
Pasteurization
Mechanism of type I hypersensitivity
(2x4=8)
a)
b)
c)
d)
(2x4=8)
a)
b)
c)
d)
Write in brief about:
Laboratory diagnosis of gas-gangrene
Principle of agglutination and its examples
VDRL test
Culture of Mycobacterium tuberculosis
4.
MBBS II (Second) Professional Examination 2011-12
Roll No.
Student’s Name
Student’s Signature
Invigilator’s Signature
Course Code:MBS202
Paper ID: 0312105
Microbiology - I
Part ‘A’
Time: 20 Minutes
Max Marks: 10
Note: 1. Attempt all questions and return this part of the question paper to the invigilator after 20 Minutes.
2. Please tick (√) correct one only. Cutting, overwriting or any other marking are not allowed.
3. For answering please use Ball- pen only.
Q.1
The India ink preparation in suitable for
demonstration of:
a)
Capsulated organism
b)
Non capsulated organism
c)
Motile organism
d)
Non motile organism
Q.6
One of the causative agent of non
gonococcal urethritis is:
a)
Streptococcus pyogenes
b)
Escherichia cali
c)
Chlamydia trachomatis
d)
Neisseria gonorrhea
Q.2
Which of the following is an example of
zoonotic disease?
a)
Polio myelitis
b)
AIDS
c)
Diphtheria
d)
Plague
Q.7
Q.3
CD 8 surface antigen is present in:
a)
Helper T cells of Th 1 type
b)
Cytotoxic T cells
c)
Helper T cells of Th 2 type
d)
Delayed type hypersensitivity tolls
A 25 year old man is said to be infected
with a multidrug resistant strain of M.
tuberculosis (MDR strain). The strain is:
a)
Susceptible only to isoniazid
b)
Resistant to isoniazid and streptomycin
c)
Resistant to isoniazid and ciproflox
d)
Resistant to both isoniazid and
rifampicin
Q.8
Which of the culture medium stimulates
rapid growth of corynebactrium diphtheria?
a)
Potassium telurite blood agar
b)
Lowenstein Jensen medium
c)
Chocolate blood agar
d)
Loffler’s serum slope
Q.9
Gram staining of a urethral smear from a
man shows Gram negative diplococci
inside the polymorphonuclear cells. The
organism is:
a)
Haemophilus influenza
b)
Neisseria gonorrhea
c)
Streptococcus pneumoniae
d)
Escherichia coli
Q.4
Q.5
A single unipolar arrangement of flagellum
is known as:
a)
Lophotrichous
b)
Ampitrichous
c)
Monotrichous
d)
Peritrichous
‘Rough, tough and buff’ colonies on
Lowenstein Jensen (LJ) medium are
characteristic of:
a)
Mycobacterium tuberculosis
b)
Mycobacterium bovis
c)
Mycobacterium fortuitum
d)
Mycobacterium Kansasii
PTO
10.
Acute Rheumatic fever is a non suppurative
sequelae of:
a)
Group D speptococci
b)
Group B Speptococci
c)
Group C Speptococci
d)
Group A Speptococci
11.
Soft chancres or chancroid is caused by:
a)
Haemophilus ducreyi
b)
Treponema pallidum
c)
Neisseria gonorrhoeae
d)
Chlamydia trachomatis
12.
A form of genetic exchange through a
bacterial virus is:
a)
Conjugation
b)
Transformation
c)
Transposition
d)
Transduction
Q.13
The method of steam sterilization at 100°C
for 30 minutes on three consecutive days is
known as:
a)
Tyndallization
b)
Inspissation
c)
Filteration
d)
Pasteurization
Q.14
One of the following is a cause of neonatal
meningitis:
a)
Group C streptococci
b)
Group B streptococci
c)
Group A streptococci
d)
Group D streptococci
Q.15
Which of the following bacterial species
cause pseudomembrane colitis?
a)
Escherichia coli
b)
Shigella dysenteriae
c)
Vibria parahaemolyticus
d)
Clostridium difficile
Q.16
Nagler’s reaction is used
identification of:
a)
Clostridium perfringens
b)
Clostridium botulinum
c)
Clostridium tetani
d)
Clostridium septicum
Q.17
Which of the following types of leprosy is
the most infection?
a)
Lepromatous Leprosy (LL)
in
the
b)
c)
d)
Borderline Lepromatus (BL)
Borderline Tuberculoid (BT)
Hyper reactive Tuberculoid (TT)
Q.18
Organisms growing
referred to as:
a)
Mesophiles
b)
Halophiles
c)
Psychrophiles
d)
Thermophiles
Q.19
Which of the following is not involved in
gas-gangrene?
a)
Clostridium perfringens
b)
c)
d)
Q.20
below
10°C
Clostridium tetahi
Clostridium novyi
Clostridium histolyticum
The causative agent of ‘Hard Chancre’ is:
a)
Chlamydia Machomatis
b)
Treponema pallidum
c)
Leptospira
d)
Nesseria gonorrhoeae
are