Bangalore University 2008 B.Sc Biotechnology INATON - Question Paper

Microbiology-V
AGRICULTURAL AND ENVIRONMENTAL MICROBIOLOGY
Time: 3hours
Max marks: 60

Instruction:
1) ans all ques.
2) Draw diagram where necessary
3) Answers should be written either completely in English or in Kannada

I. Answer all ques. 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. ans any 4 ques.. 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) provide a brief account of sand filtration.

III. ans any 3 of the subsequent 3x10=30


11) provide an account of microbial degradation of cellulose in soil.
12) describe soil and provide an account on soil profile.
13) discuss the structure of airborne endotoxin and add a not on its
mechanism of causing bio hazards.
14) explain the distribution of microorganism in aquatic environment in detail.
15) Describe the causal organism, symptoms and control measures involved in wheat rust.

Earning:   Approval pending.