LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
B.Sc. DEGREE EXAMINATION – ADVANCED ZOOLOGY & BIOTECH.
SIXTH SEMESTER – APRIL 2012
AZ 6600 - ENVIRONMENTAL BIOTECHNOLOGY
Date : 16-04-2012
Time : 1:00 - 4:00
Dept. No.
Max. : 100 Marks
SECTION - A
Answer ALL questions:
(10 x 2 = 20)
01. What is biomagnification?
02. What is biofilm?
03. What are biosensors?
04. Define trickling filters.
05. What is eutrophication?
06. Name any two methanogenic bacteria.
07. What is bioleaching?
08. Define biomining.
09. What is bioremediation?
10. What is plasmid?
SECTION - B
Answer any FOUR of the following questions:
(4 x 10 = 40)
11. Explain in detail the anaerobic systems in waste water treatment.
12. Give an account on biodegradation of pesticides.
13. Describe the process of aerobic digestion.
14. What are PCBs? Explain their role in reducing the environmental pollution.
15. Explain the biomass production from wastes.
16. Describe the process involved in drinking water treatment.
SECTION - C
Answer any TWO of the following questions:
(2 x 20 = 40)
17. Describe in detail on different types of bioreactors.
18. Explain biodegradation of xenobiotics.
19. Describe the process of biogas production.
20. Give an account of biotechnological methods in hazardous waste management.
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