Mahatma Gandhi University (MGU) 2012-3rd Sem M.Sc Microbiology , Kottayam - (MODEL ) MB3PG10 - Environmental And Agricultural - Question Paper

Mahatma Gandhi University, Kottayam
Third Semester M.Sc.Microbiology exam - 2012
(MODEL ques. PAPER)
MB3PG10 - Environmental And Agricultural Microbiology

Time : three Hrs Weightage: 30
I. Write Notes on Any 5 (Wt: one each)
1. Microbes used in bioleaching
2. Chemical agents used for air sanitation
3. Factors affecting soil microflora
4. Any 2 bacterial wilt diseases.
5. Significance of Biological oxygen demand of water.
6. Stages of composting process.
7. Sources of microorganisms in air
8. Indicator organisms of faecal contamination of water
II Write Short Essay on Any 5 (Wt: two each)

9. Iron corroding bacteria.
10. Biofilm formation & significance
11. IPM strategies for control of plant diseases
12. Microbial indicators of air pollution
13. Ectomycorrhizal associations
14. Production of Bacterial biofertilizers
15. Steps for purification of water
16. Mechanism of Biogas production by microbes.
III ans Any 3 in Detail (Wt: five each)
17. explain microbe-microbe Interactions
18. what are on the mechanism & genetics of biological nitrogen fixation. discuss Root
nodulation.
19. provide in details the methods of Bioremediation.
20. provide an account of Waste water treatment plant.
21. discuss biogeochemical cycling and significance of Nitrogen and carbon
22. provide a brief account of air sampling devices used for enumeration of bacteria

Earning:   Approval pending.