Question number 1 is compulsory1. Louis Pasteur is known as “father of microbiology”. Justify
2. Give six distinctive characters of prokaryotes, eukaryotes and archaebacteria.3.What are bacteriophages and plasmids? Discuss their role in recombinant DNA technology? (Refer: Cloning Vector, Plasmid as cloning vector)4. What do you meant by “nitrification” and “denitrification”? Explain their ecological significance in nature?
5. What is fermented milk? Name the
various kinds of fermented milk and the steps involved in cheese
manufacture.
6. a) What are bio insecticide and
why Bacillus thuringiensis has proved to be most effective
bioinsecticide? b)What strategies may be
followed to improve its efficiency as bio-insecticide?
7. Explain the role of shunt in
Hexose Monophospahte Pathway. Discuss in detail HMP pathway in bacterial
system.
8. Discuss various immunological
methods used in the detection of microorganisms in food?
9. List different methods to measure
microbial growth. Discuss any two methods in detail with merits and
demerits?
10. Phosphorus is abundant but
remains mostly fixed in soil. What are the conditions that favour phosphorus
availability and how microbes help in the process?
11. What are antibiotics? Explain
various method of their mode of action.
12. What is composting? What are the
benefits and risks involved in the use of composts?
13. Differentiate between BOD and
COD. Why significant reduction in BOD is essential in waste water
treatment?
14. Write short notes on any
four
a. Bioflim
b. Biofuel
c. Biosensors
d. Bioremediation
e. Bioaccumulation of
pesticides
15. Why do some bacteria prefer
Entner Deudroff Pathway? Give a detailed account of ED pathway with key enzymes
and reactions involved.
Tags:
Agricultural Microbiology previous questions
ARS- NET previous questions 2011
ICAR ARS previous questions
MCQ on Agricultural Microbiology
Microbiology Notes