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Semester II Examinations 2011 / 2012
Exam Code(s) 1PGM Exam(s) Postgraduate Diploma in Applied Microbiology Module Code(s) MI Module(s) Microbiology Paper No. Paper No. 2 External Examiner(s) Dr. John P. Quinn Internal Examiner(s) Professor Vincent O’Flaherty *Dr. Cyril Carroll *Dr. Gerard Fleming
Instructions Answer FOUR Questions
INDICATE CLEARLY THE QUESTIONS
ANSWERED ON THE FIRST PAGE OF YOUR
ANSWER BOOK
Duration (^) 3 Hours No. of Pages Cover Page + 2 pages Department(s) Microbiology Co-ordinators Dr. Cyril Carroll & Dr. Gerard Fleming Requirements None Release to Library Yes PTO
Q.1 Describe how lactic (country butter) is manufactured. Q.2 Give a comprehensive account of the traditional fermentation process for lager production. What are the main groups of spoilage organisms associated with fermented beer? Q.3 Describe the underlying chemistry of the Biological Oxygen Demand (BOD) test and associated Winkler titration. How is the test is carried out in practice? Q.4 Describe, compare and contrast the principle methods used for the preservation of microorganisms. Q.5 Describe the microbiology of anaerobic digestion and discuss its application for the biological treatment of industrial wastewaters.
PTO
Question 6 is on the next page …..
