Roll No. : | | Total No. of Pages : 02
Total No. of Questions : 18
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B.Tech. (BT) (2018 Batch) (Sem.-3)
MICROBIOLOGY
Subject Code : BTBT303-18
M.Code : 76947
Time : 3 Hrs. Max. Marks : 60
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INSTRUCTIONS TO CANDIDATES :
- SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
- SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
- SECTION-C contains THREE questions carrying TEN marks each and students have to attempt any TWO questions.
SECTION-A
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Write briefly :
- Write two functions of pili in bacteria.
- Name two diseases in humans caused by virus.
- Define Selective Medium.
- What is Diauxic Growth?
- Give the definition of Microbial Fermentation.
- What is Decimal Reduction Time?
- Give two major contributions of Elie Metchnikoff in the field of microbiology.
- What is the major difference between Archaea and Eubacteria?
- Which period is known as the Golden Era of Microbiology?
- How is fungi different from bacteria?
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SECTION-B
- What are the different phases of Growth Curve? Explain each phase in detail.
- What are the different methods of Sterilization? Briefly discuss moist heat sterilization (Autoclaving).
- Discuss briefly the classification of bacterial based on nutritional requirement. Provide requisite examples.
- How are microbial strains preserved and maintained in the industry?
- Describe the process of conjugation and its role in bacterial reproduction.
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SECTION-C
- Explain in detail about the batch and continuous fermentation process.
- What are the different methods of screening industrially important microorganisms?
- Explain the structural difference between Prokaryotic-and Eukaryotic microorganisms.
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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.
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This download link is referred from the post: PTU B.Tech Question Papers 2020 December (All Branches)