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Posted Date: 13 Aug 2009 Posted By: nagen tairai Member Level: Silver
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2008 Bangalore University B.Sc Microbiology BSc EXAMINATION NOV/DEC Question paper
Microbiology-V
AGRICULTURAL AND ENVIRONMENTAL MICROBIOLOGY 2008
Time: 3hours
Max marks: 60
Instruction:
1) Answer all questions
2) Draw diagram where necessary
3) Answers should be written either completely in English or in Kannada
I. Answer all questions 5x2=10
1) Define the term Rhizosphere.
2) What is Nif gene?
3) What is denitrification?
4) Define bioleaching.
5) How is allergen prepared for skin testing?
II. Answer any four questions. 5x4=20
6) Write notes on fungal biofertilizer.
7) Discuss the role of NPV as biopesticides.
8) Explain air trapping devices based on filtrations techniques
9) Writes on parameters of portable water.
10) Give a brief account of sand filtration.
III. Answer any three of the following 3x10=30
11) Give an account of microbial degradation of cellulose in soil.
12) Define soil and give an account on soil profile.
13) Explain the structure of airborne endotoxin and add a not on its mechanism of causing biohazards.
14) Discuss the distribution of microorganism in aquatic environment in detail.
15) Describe the causal organism, symptoms and control measures involved in wheat rust.
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