Microbiology Question Paper

Microbiology

Course:

Institution: Northcoast Medical Training College question papers

Exam Year:2015

SECTION A: MCQS ATTEMPT ALL QUESTIONS BY CIRCLING THE CORRRECT ANSWER
1. Which of the following is not a viral disease?
A. Dengue fever
B. Rift valley fever
C. Karposi sarcoma
D. malaria
2. Which of the following is a water bone disease?
A. Hepatitis B
B. Hepatitis A
C. Cellulitis
D. Human papilloma virus
3. Which of the following does not explain how viruses are named?
A. Geographical location the virus was first discovered
B. The disease they cause
C. Their discoverers
D. The type of patients the virus infects
4. The following methods are used in diagnosing a bacterial infection except?
A. Culture
B. Gram staining
C. Genotypic techniques
D. Electron microscopy
5. Which of the following is not a viral disease?
A. Typhoid
B. Poliomyelitis
C. Dengue fever
D. Chikungunya
6. The following must be documented in a laboratory request form except?
A. The outpatient number
B. The name of the patient
C. The age of the patient
D. All of the above
7. Which of the following is not an example of an acid fact bacteria
A. Mycobacterium leprae
B. Mycobacterium tuberculi
C. Streptococcus pnumonae
D. All of the above
8. Which of the following best explain why we may need to enumerate bacterias?
A. To know which drug to give a patient
B. To know how long a patient has been infected with a bacteria
C. To quantify the amount of bacteria in food or water so that we can determine its safety
D. None of the above
9. Which of the following is not a viral property?
A. They have a cytoplasm
B. They can either be RNA or DNA viruses and never have both types of genome
C. They can be naked or enveloped
D. They are intracellular parasites
10. Fungi differ from bacterias in that ……
A. They have a cellulose cell wall
B. They can be both be gram positive and gram negative
C. They have cytoplasmic membrane contain ergosterol
D. Their cytoplsmic membrane contain peptidoglycan layer
11. Which of the following would not be a requirement for a culture media that would enhance bacterial growth invivo
A. Nutrients
B. Minerals
C. Suitable PH
D. None of the above
12. Which of the following is not a cestodes
A. Taenia saginata
B. Haemonelepis nana
C. Schistosoma haematobium
D. Diphyllobothrium latum
13. Which of the following is the causative agent of filariasis
A. Loaloa
B. Brugia malayi
C. Wunchereria bancrofti
D. Black fly
14. Which of the following helminthes may cause rectal prolapse
A. Pinworm
B. Hookworm
C. Tapeworm
D. Ascaris
15. Which of the following is not a concept of vector capacity
A. Vector competence
B. Vector longetivity
C. Host specificity
D. Vector vulnerability
16. Which of the following is not a superficial mycoses
A. Black piedra
B. White piedra
C. Tinea nigra
D. Sporothrix schenki
17. Which of the following is not a respiratory mycoses
A. Transmitted by inhalation of spores
B. Associated with chicken and bat dropping
C. Candidiasis is an example of a respiratory mycoses
D. May cause occasional internal infections with high fatality rate
18. Which of the following is not a mycotoxin
A. Citrinin
B. Aflatoxin
C. Patulin
D. Lysine
19. Which of the following is not a distinguishing characteristic of a virus
A. Contain both DNA and RNA
B. Are obligate intracellular parasite
C. Replication involves disassembly and reassembly
D. Contain DNA or RNA
20. Which of the following is not a property of a naked virus
A. Stable in hostile environment
B. Released by lyses of host cell
C. Can stay dry and still retain infectivity
D. Obtained by budding through a cellular membrane
SECTION B: TRUE OR FALSE. ANSWER ALL QUESTIONS [1mk each].
TRUE FALSE
1. Dimorphic fungi exist both as unicellular or multicellullar
2. Immunosuppressive conditions expose one to fungal infections
3. Moulds are unicellular fungi
4. Fungal toxins are also called mycotoxins
5. Penicillium notatum is used in production of an antiviral

SECTION C: SHORT ANSWER QUESTIONS 5mks each.[ Choose 3 questions]
1. State 5 examples of microscopes you know
2. With 2 examples , describe opportunistic mycoses
3. State five examples of cutaneous mycoses
4. With the aid of a diagram describe the life cycle of Entamoeba histolytica
5. Describe briefly the pathogenesis of roundworms

SECTION D: LONG ANSWER QUESTIONS 10mks each. [Choose 3 questions ONLY]
1. Describe what oncogenic viruses are giving examples
2. Describe the replication cycle of HIV virus
3. How would you diagnose and treat a fungal infection?
4. Describe the 5 specimens that could be sent to the laboratory for diagnosis of infectious diseases

SECTION D APLICATION QUESTIONS 20 MKS [ATTEMPT ONLY 1 question]
1. Anita, a patient who visits you in your clinic with the following complains
i. Lower abdominal pain
ii. Greenish smelly discharge
iii. Pain during copulation
iv. Itching in the private parts
a) Describe the diagnosis for Anita 2MKS
b) What would be the best specimen for laboratory investigation 2MKS
c) What advice would you give to Anita 12MKS
d) State the most probable infectious agent 4MKS
2. Agnes is 45 years old. She has significantly lost a lot of weight of late and sweats during the night. She has been having this persistent cough for the last three weeks. She is a peasant farmer and a widow
I. What infectious agent is Agnes suffering from? 2mks
II. What would be the predisposing factor for Agnes illness 4MKS
III. How would you advice Agnes 8MKS
IV. Describe the precaution you would take to admit Agnes in the ward 6MKS

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