LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.Sc. DEGREE EXAMINATION – MEDICAL LAB. TECH.
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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:
- Which test can differentiate Salmonella from Shigella?
- Enumerate the different pigments produced by Pseudomonas.
- Define virus and enumerate their characteristic properties.
- Name any four oncogenic viruses.
- Differentiate bacteria from fungi.
- What are mycotoxins?
- Enumerate the lesions produced in amoebiasis.
- Name the species of Leishmania pathogenic to man.
- What is ascaris pneumonia?
- 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:
- Discuss briefly the clinical conditions caused by Salmonella.
- Discuss the lytic cycle of bacteriophage.
- Enumerate the fungi responsible for cutaneous mycosis and explain their pathogenesis.
- Enumerate the difference between Plasmodium vivax and Plasmodium falciparum.
- Discuss briefly the life cycle of Taenia solium.
- 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:
- Discuss in detail about the causative agent, pathogenesis and diagnosis of Diptheria
- Write short notes on
- a) Mumps b) Rubella c) Small pox d) Measles
- Explain in detail the role of Candida in causing infection to man.
- Write an essay on filariasis.