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EXAMINATION JANUARY 2024
BACHELOR OF MEDICINE AND BACHELOR OF SURGERY
(SECOND YEAR)
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MICROBIOLOGY ( PAPER - I ) ( NEW ) (OMR)[Time: As Per Schedule]
[Max. Marks: 100]
Instructions:
Seat No:
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1. Fill up strictly the following details on your answer booka. Name of the Examination : BACHELOR OF MEDICINE AND
BACHELOR OF SURGERY (SECOND YEAR)
b. Name of the Subject : MICROBIOLOGY ( PAPER - I ) ( NEW )
(OMR)
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c. Subject Code No : 24060001020307012. Sketch neat and labeled diagram wherever necessary.
3. Figures to the right indicate ful marks of the question.
4. Al questions are compulsory.
Student's Signature
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Microbiology: Paper-IQ.1 MCQs
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1. Name the Gram-positive cocci that form grape-like clusters:
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A. StreptococcusB. Staphylococcus
C. Enterococcus
D. Pneumococcus
2. The immunoglobulin predominant in secretions like saliva and tears is:
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A. IgAB. IgG
C. IgM
D. IgE
3. Name the staining method used to detect acid-fast bacteria:
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A. Gram stainingB. Ziehl-Neelsen staining
C. India ink staining
D. Methylene blue staining
4. The causative agent of amoebic dysentery is:
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A. Giardia lambliaB. Entamoeba histolytica
C. Cryptosporidium parvum
D. Balantidium coli
5. The toxin responsible for food poisoning caused by Clostridium
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botulinum is:A. Endotoxin
B. Botulinum toxin
C. Tetanospasmin
D. Exotoxin A
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6. The complement pathway that is antibody-dependent is called:
A. Classical pathway
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B. Alternative pathwayC. Lectin pathway
D. Terminal pathway
7. The causative agent of typhoid fever is:
A. Escherichia coli
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B. Salmonella typhiC. Shigella flexneri
D. Vibrio cholerae
8. The immunoglobulin responsible for anaphylactic reactions is:
A. IgE
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B. IgAC. IgM
D. IgG
9. Which test is used to confirm the diagnosis of Helicobacter pylori
infection?
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A. Urease breath testB. ELISA for antibodies
C. Stool antigen test
D. All of the above
10. Name the organism that causes gas gangrene:
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A. Clostridium perfringensB. Clostridium difficile
C. Clostridium tetani
D. Escherichia coli
11. Which hepatitis virus is transmitted via the fecal-oral route?
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A. Hepatitis BB. Hepatitis C
C. Hepatitis A
D. Hepatitis D
12. Which of the following is a zoonotic bacterial infection?
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A. Salmonella typhiB. Leptospira interrogans
C. Vibrio cholerae
D. Shigella flexneri
13. The gold standard for malaria diagnosis is:
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A. Peripheral blood smear B. Rapid diagnostic testsC. ELISA for antigens
D. PCR
14. The causative organism of pseudomembranous colitis is:
A. Escherichia coli
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B. Clostridium difficileC. Shigella dysenteriae
D. Salmonella typhi
15. The organism associated with peptic ulcer disease is:
A. Helicobacter pylori
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B. Escherichia coliC. Shigella flexneri
D. Vibrio cholerae
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16. What is the major vector for Dengue fever?
A. Aedes aegypti mosquito
B. Anopheles mosquito
C. Culex mosquito
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D. Sandfly17. Which organism is associated with prosthetic valve endocarditis?
A. Staphylococcus epidermidis B. Staphylococcus aureus
C. Escherichia coli
D. Enterococcus faecalis
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18. Name the staining method used for identifying Cryptococcusneoformans:
A. Gram stain
B. India ink staining
C. Ziehl-Neelsen staining D. Lactophenol cotton blue
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19. Which immunoglobulin is the first to be produced in a primary immuneresponse?
A. IgA
B. IgG
C. IgM
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D. IgE20. Rocky mountain snotted fever is due to
A. R. rickettsii
B. R. prowazekii
C. R. typhi
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D. R. conorilSection 02
Q.2 Essay-
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12Describe in detail the structure and function of the cell wall and cell membrane
of a gram-negative rod with the help of a diagram.
Q.3 Answer in Brief (Any 4 out of 5)
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281. What are the primary components of the innate immune system, and
how do they differ from those of the adaptive immune system?
2. Describe in detail the structure & Function of the Bacterial Cell wall
write methods of Demonstration of cel wall
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3. Describe the mechanism of action of beta-lactam antibiotics.4. Discuss the immunopathogenesis of an autoimmune disease
5. Write about antigen-antibody reactions and their applications in
diagnostics.
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[3 of 4]Section 03
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Q.4 A 35-year-old male presents with high-grade fever, fatigue, and new onset of a
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heart murmur. Blood culture grows Streptococcus viridans.
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1. What is the likely clinical condition?
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2. Discuss the pathogenesis of this condition.
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3. Describe the laboratory diagnosis and treatment options5
Q.5 Answer in Brief (Any 4 out of 5)
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1. Describe the laboratory diagnosis of amoebic liver abscess
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2. Explain the laboratory diagnosis of typhoid fever.3. Write about Clostridium difficile infections and their management.
4. Importance of effective communication skills in Doctor-Patient
relationship
5. Pyrexia of unknown origin: definition, causes and diagnostic test used
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