LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – MEDICAL LAB TECHNOLOGY

HZ 1

SECOND SEMESTER – APRIL 2006

                                                         ML 2801 – HUMAN PATHOGENS

 

 

Date & Time : 19-04-2006/FORENOON     Dept. No.                                                       Max. : 100 Marks

Part A                                               (Answer All)                                       10 ´ 2 = 20

1. What are the general characteristics of spirochaetes and compare those characteristics with other bacteria.
2. List the virulent factors of Staphylococcus aureus.
3. Give two examples of primary cell culture and continuous culture.
4. What are virions?
5. Give the causative agents of coccidioidiomycosis, Blastomycosis
6. What are dimatiaceous fungi?
7. Differentiate amoebic and bacillary dysentery.
8. What are the characteristics of a fertilized egg of Ascaris
9. Mention any four DNA viruses
10. Write the mode of infection, portal of entry, infecting agent and site of localization of Fasciolopsis buski.

 

Part B                                          (Answer any four)                                   4 ´ 10 = 40

 

11. Explain the circumstances and events leading to gas gangrene.
12. Explain the action of Vibrio toxin and its pathogenesis.
13. Discuss the four stages of disease caused by Rabies virus in humans.
14. Enumerate the fungi causing chromomycosis. Add a note on its pathogenesis and clinical findings.
15. Give a general account of intestinal flagellates.
16. Write in detail about the life cycle of Ancylostoma duodenale.

 

Part C                                           (Answer any two)                                   2 ´ 20 = 40

17. Write an essay on the four major clinical syndromes of Salmonella.
18. Explain the two types of life cycle exhibited by phages.
19. Give a general account of Candida albicans.
20. Explain in detail the life cycle of malarial parasite in man.

 

 

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – MEDICAL LAB. TECH.

HP 13

SECOND SEMESTER – APRIL 2007

ML 2801 – HUMAN PATHOGENS

 

 

 

Date & Time: 17/04/2007 / 1:00 – 4:00         Dept. No.                                                       Max. : 100 Marks

 

 

 

Section A                                (10 x 2 = 20 Marks)

 

Answer all the Questions:

 

1. Which test can differentiate Salmonella from Shigella?
2. Enumerate the different pigments produced by Pseudomonas.
3. Define virus and enumerate their characteristic properties.
4. Name any four oncogenic viruses.
5. Differentiate bacteria from fungi.
6. What are mycotoxins?
7. Enumerate the lesions produced in amoebiasis.
8. Name the species of Leishmania pathogenic to man.
9. What is ascaris pneumonia?
10. Name any four parasites whose mode of infection is by oral route.

 

Section B                                (4 x 10 = 40 Marks)

 

Answer any four of the following:

 

11. Discuss briefly the clinical conditions caused by Salmonella.
12. Discuss the lytic cycle of bacteriophage.
13. Enumerate the fungi responsible for cutaneous mycosis and explain their pathogenesis.
14. Enumerate the difference between Plasmodium vivax and Plasmodium falciparum.
15. Discuss briefly the life cycle of Taenia solium.
16. Explain the role of various toxins and enzymes produced by Staphylococcus aureus

 

Section C                                ( 2 x 20 = 40 Marks)

 

Answer any two of the following:

 

17. Discuss in detail about the causative agent, pathogenesis and diagnosis of Diptheria
18. Write short notes on
19. a) Mumps b)  Rubella    c)  Small pox   d)  Measles
20. Explain in detail the role of Candida in causing infection to man.
21. Write an essay on filariasis.

 

 

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BU 06

LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – MEDICAL LAB. TECH.

SECOND SEMESTER – April 2009

ML 2810/ML 2801 – HUMAN PATHOGENS

 

 

 

Date & Time: 20/04/2009 / 1:00 – 4:00        Dept. No.                                                                     Max. : 100 Marks

 

 

PART – A

 

(Answer ALL)                                                                                                           (10 ´ 2 = 20)

1. Comment on coagulase test?
2. Differentiate saprophyte from parasite.
3. Name two selective media used for the isolation of Vibrio cholerae.
4. Enumerate the antigenic variations in Salmonella.
5. What is parotitis? Mention the causative agent.
6. Define quellung reaction.
7. What are Dane particles?
8. Expand: PHC, PCR, AST, IgG.
9. What is weil felix reaction?
10. Enumerate any four subcutaneous mycoses.

PART – B

(Answer any FOUR)                                                                                                   (4 ´ 10 = 40)

1. Explain the life cycle and laboratory diagnosis of Chlamydea.
2. Give an account on clinical importance and laboratory diagnosis of adenovirus.
3. Write notes on the pathogenesis and laboratory diagnosis of Coccidioidomycosis.
4. Describe the life cycle and pathogenesis of Giardia lamblia.
5. Describe the life cycle and laboratory diagnosis of Taenia solium.

16. Explain the lytic and lysogenic reproductive cycle in bacteriophage.

PART – C

(Answer any TWO)                                                                                                      (2 ´ 20 = 40)

1. Discuss the development of Ancylostoma dudenale with labeled diagram. Add a note on pathogenesis, laboratory diagnosis, treatment and prevention.
2. Describe the development of Leishmania with neat labeled sketch. Add a note on pathogenesis, laboratory diagnosis, treatment and prevention.
3. Name the three fungi causing Dermatophytosis and discuss the pathogenesis and laboratory diagnosis.
4. Explain the importance of Paramyxovirus. Give a detailed account on pathogenesis, laboratory diagnosis, treatment and prophylaxis of mumps virus.

 

 

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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034

M.Sc. DEGREE EXAMINATION – MEDICAL LAB. TECHNOLOGY

SECOND SEMESTER – APRIL 2012

ML 2810 – HUMAN PATHOGENS

 

 

Date : 17-04-2012             Dept. No.                                        Max. : 100 Marks

Time : 9:00 – 12:00

 

SECTION –A

 

Answer ALL questions:                                                                                                    10×2=20 marks

 

1. Define nosocomial infection.
2. What is syncytia?
3. Name the causative organisms of Trichomoniasis and Amoebiasis
4. List down the symptoms of gonorrhea in males as well as females.
5. Draw the structure of paramyxovirus.
6. What is elephantiasis?
7. Mention the common malarial parasites which cause malaria.
8. What are the causes of genital herpes?
9. Write down the symptoms of tertiary syphilis.
10. Define nephritis and conjunctivitis.

 

SECTION B

 

Answer any FOUR of the following:                                                                               4×10=40 marks

 

11. Explain the morphology, pathogenesis and clinical conditions of mumps.
12. Draw and explain the life cycle of Entamoeba histolytica.
13. Discuss the mode of transmission, pathogenesis and clinical conditions of Lymphogranuloma

venereum

14. Describe the morphology, virulence factors and pathogenesis of Shigella dysenteriae
15. Give an account on hospital acquired infections.
16. Explain the morphology, antigenic structure, virulence factors and pathogenesis of

Salmonella typhi.

 

 

SECTION-C

 

Answer any TWO of the following:                                                                                2×20=40 marks

 

17. Explain sterilization using physical methods.
18. Draw and explain the structure, pathogenesis of HIV.
19. Describe the morphology, mode of transmission, virulence factors and pathogenesis of

Vibrio cholerae.

20. Give an account on plague.

 

 

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