Bangalore University 2007 B.Sc Biotechnology V SEMESTER intion / - Question Paper

MICROBIOLOGY –V
AGRICULTURAL AND ENVIRONMENTAL MICROBIOLOGY
TIME: three HOURS Max Marks: 60
Instruction:
1) ans all ques.
2) Draw diagram where necessary

I. Answer all ques. 5x2=10

1) Phyllosphere
2) Beijerinckia
3) Impinges
4) List out any 4 salient features of VAM fungi
5) Eutropication

II. ans any 4 ques.. 5x4=20

6) Describe vertical cylinder trap.
7) Describe the clinical procedure involved in Allergy testing.
8) Define bioleaching. define the process involved in bioleaching of copper.
9) What is a bio geo chemical cycle? discuss sulphur cycle.
10) Explain briefly the cause, symptoms and control measures related to blast disease of rice.

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

11) Describe the causative organism, symptom and control measures involved in Tobacco mosaic disease.
12) Describe the various kinds of positive interaction involved among microorganism.
13) Name the biological indicators of water pollution. define coliform test.
14) Discuss the biohazards in occupational environment related to air.
15) Explain the mechanism involved in symbiotic nitrogen fixation

Earning:   Approval pending.