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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034
B.Sc. DEGREE EXAMINATION ADVANCED ZOOLOGY AND BIOTECHNOLOGY
SIXTH SEMESTER APRIL 2016
AZ 6603/AZ 6600 ENVIRONMENTAL BIOTECHNOLOGY
Date: 15-04-2016 Dept. No. Max. 100 Marks
Time: 09:00-12:00
PART A
Answer ALL questions: (10 x 2 20 marks)
1. Define nitrification.
2. What are biosensors?
3. What are bioreactors?
4. Define eutrophication.
5. Define methanogenesis.
6. What is lyophilization?
7. What is biosorption?
8. Define xenobiotics.
9. Comment on stabilization pond.
10. What is phytoremediation?
PART B
Answer any FOUR questions: x 10 40 marks)
11. Explain the process of ethanol production.
12. Describe the process of sewage treatment.
13. Give an account on sterilization procedure in bioreactor.
14. How do you treat drinking water?
15. Explain donor versus electron acceptors.
16. How biomass is produced from waste?
Answer any TWO questions: x 20 40 marks)
17. Give a detailed account on reactor types.
18. Explain the process of denitrification.
19. Give an account on biodegradation.
20. Discuss bioleaching with its advantages and disadvantage.