Download JNTUA B.Tech 1-2 R15 2019 June 15A27201 Basic Microbiology Question Paper

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Code: 15A27201


B.Tech I Year II Semester (R15) Regular Examinations May/June 2019
BASIC MICROBIOLOGY
(Food Technology)

Time: 3 hours Max. Marks: 70

PART ? A
(Compulsory Question)

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1 Answer the following: (10 X 02 = 20 Marks)
(a) Mention the applied areas of microbiology.
(b) Distinguish bright vs. dark field microscope.
(c) How filaments did help the bacterial movement?
(d) Define bacterial conjugation.
(e) What is meant by mutation rate?
(f) Mention the mutation repair process.
(g) Give the structure of DNA in a virus.
(h) Define replication of virus.
(i) Give certain chemo-therapeutic agents to control microbes.
(j) Mention on plate count method.

PART ? B
(Answer all five units, 5 X 10 = 50 Marks)

UNIT ? I

2 Explain theory, instrument design and working of transmission electron microscope.
OR
3 Explain the morphology, characteristics and reproduction of fungi and molds.

UNIT ? II

4 Elaborate the bacterial identification, reproduction and growth with neat diagram.
OR
5 Explain in detail on the bacterial conjugation, transduction and transformation.

UNIT ? III

6 Explain the phenotypes of bacterial mutents and its characteristics.
OR
7 Classify and explain the various designations of bacterial mutents.

UNIT ? IV

8 Classify the structures and explain the structure function relationships in virus.
OR
9 Elaborate the various food borne viruses and its consequences.

UNIT ? V

10 Illustrate and explain the various methods of bacterial straining.
OR
11 Give a detailed account on the methods of control of microorganisms.

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R15
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