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LOYOLA COLLEGE (AUTONOMOUS), CHENNAI 600 034 M.Sc.DEGREE EXAMINATION BIOTECHNOLOGY SECONDSEMESTER APRIL 2017
16PBT2MC02- FERMENTATION TECHNOLOGY
Date: 21-04-2017 Dept. No. Max. 100 Marks
01:00-04:00 PART A Answer ALL the Questions I. Choose the correct answer (5x1 5 Marks)
1. Which of the following have Type I survivorship curve?
Animals Birds Humans Rats 2. River Ganga (Rejuvenation, Protection and Management) Authorities Order was passed in 1986 2000 c)2006 2016
3. the injection of air under pressure below the water table to increase
groundwater oxygen. Bioventing Biosparging Bioaugmentation Biomining
4. The process of extracting metals from ore bearing rocks is called
bioextraction microbial extraction biofiltration bioleaching
5. Metallothioneine is rich in
Cysteine Serine threonine Asparganine II. State whether the following are true or false, if false, give reason (5x1=5 Marks)
6. Eradication of Proposis juliflora is underway in Tamilnadu .
7. Traffic sound account for about 50% of Delhi's noise pollution.
8. Nitrification and denitrification are the important anaerobic reactions in sewage treatment.
9. As the amount of organic matter present in water increases, the biological oxygen demand increases.
10. Biodegradation of aliphatic hydrocarbons is slow due to their low solubility in aqueous
medium. III. Complete the following 5 Marks)
11. In a previously occupied area is re-colonized after a disturbance kills the entire community.
12. fine inhalable air pollutants with a diameter of 2.5μ or less
13. Non directed physic chemical interaction between heavy metals and microbial surface is called
14. Biomass and wastewater added to activated sludge process is called
15. The process of using fungi for bioremediation is termed
IV. Answer the following within 50 words (5x1 5 Marks)
16. What is ecotone?
17. Define helikite.
18. What is break point chlorination?
19. What is pyrolysis?
20. Name the biogas plants approved by NPDB.
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PART B Answer the following each within 500 words. (5x8 40 marks) Draw diagrams and flowcharts wherever necessary
21. Write short notes on: i. Niche ii. K selected species
OR Explain the concept of metapopulation, dispersal and fragmented habitats.
22. What were the causes of the Chernobyl disaster? Comment on its impact on health and environment.
OR Endosulfan is called the spray of death. Discuss.
23. Write briefly on nitrification and denitrification in sewage treatment. OR
Discuss the different methods of chlorination.
24. What is composting? Explain the different stages of composting.
OR Write a short note on the five technology options available for the treatment of radioactive Waste.
25. Write the characteristics of tannery effluent and its treatment.
OR How is petroleum hydrocarbons degraded aerobically? Add a note on the enzymes involved in the process. PART C Answer any TWO of the following, each within 1500 words. x20 40 Marks) Draw diagrams and flowcharts wherever necessary.
26. Explain how in situ and exsitu approaches help in conservation of bioresources.Add anote on Biodiversity Act, 2002.
27. What is remote sensing? Discuss with suitable examples the applications of remote sensing in environmental monitoring and assessment.
28. Explain the aerobic processes in waste water treatment.
29. Give a detailed account of phytoremediation and its mechanisms.