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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
B.Sc.DEGREE EXAMINATION ADVANCED ZOOLOGY AND BIOTECHNOLOGY
SECONDSEMESTER APRIL 2018
17/16UPB2AL01- APPLIED MICROBIOLOGY
Date: 28-04-2018 Dept. No. Max. 100 Marks
Time: 01:00-04:00
PART A (10 x 2 20 Marks)
Answer the following, each within 50 words.
1. List any 4 salient features of viruses.
2. What are prokaryotes?
3. Comment on normal growth curve.
4. What are competent cells?
5. Define 'scaling-up'.
6. What is meant by strain improvement?
7. What are biopolymers? Give any two examples.
8. Give the roles of vesicular arbuscularmycorrhizal fungi.
9. What is gratuitous metabolism?
10. Mention the methods to treat drinking water.
PART B X 7 35 Marks)
Answer the following, each within 500 words; Draw diagrams and flowcharts wherever necessary
11. Tabulate the classification of algae with its salient features.
Or
Give a brief account on major divisions of fungi with suitable examples.
12. How are bacteria classified based on chemical requirements?
Or
Illustrate the mechanism of bacterial conjugation.
13. Draw and describe the parts of the fermenter.
Or
Write notes on the substrates used in industrial fermentation.
14. Discuss the methodology of cheese production.
Or
Write briefly on the types of biosensors.
15. Briefly explain the direct and indirect methods of bioleaching.
Or
Explain the mechanism of biogas production.
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PART C X 15 45 Marks)
Answer any three of the following, each within 1200 words. Draw diagrams and flowcharts wherever
necessary
16. Mention the characteristic features of Gram-positive and Gram-negative bacteria with suitable
examples.
17. Describe the ultra-structure of the bacterial cell.
18. Discuss the steps involved in downstream processing.
19. Write an essay on nitrogenous biofertilizer production.
20. Illustrate and explain the waste water treatment.