LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034 M.Sc. DEGREE EXAMINATION – BIOMED.INSTRUMENTATION SC. SECOND SEMESTER – April 2009 BI 2953 / BI 2951 - MICROBIAL TECHNOLOGY Date & Time: 27/04/2019 / 1:00 - 4:00 Dept. No. CU 08 Max. : 100 Marks SECTION – A Answer ALL the following: 10 x 2 = 20 Marks 1. What are enriched and enrichment media 2. Name any four products made by aerobic fermentation 3. What are the benefits of mixed cultures? 4. What is candidiasis? 5. Define thermophiles, mesophiles and psychrophiles 6. What is Koch’s postulates? 7. What are primary lymphoid organs? 8. Differentiate lymphokines from cytokines 9. What is immunoelectrophoresis? 10. Define ELISA SECTION – B Answer any FOUR of the following: 4 x 10 = 40 Marks 11. Categorize culture media used in the culture of microorganism 12. Describe the industrial production of alcoholic beverages 13. Explain the transmission, pathogenesis and clinical symptoms of staphylococcus aureus 14. Give an account of respiratory diseases of humans 15. Explain various staining techniques followed in the identification of microorganism 16. Elaborate autoimmune disorder and the mechanism that causes it SECTION – C Answer any TWO of the following: 2 x 20 = 40 Marks 17. Explain fermentation technology and the types of reactors used in it 18. Write an essay on the use of industrial microbes in the production of antibiotics, vitamins and amino acids 19. Classify antibodies and explain their structure and function 20. Explain the procedure which play an important role in sterilization and add a note on various agents used in the same. ***********