Roll No. [ TTTTTT] [ ] Total No. of Pages : 02
Total No. of Questions : 09
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B.Sc.(BT) (2018 Batch) (Sem.-2)
INTRODUCTION TO MICROBIOLOGY
Subject Code : BSBT-202-18
M.Code : 75873
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 :
- A. Leeuwenhoek
- Koch postulates
- Molds
- Blue green algae
- Bacteriophage
- Generation time
- Diauxic growth
- Chemostat
- Biological nitrogen fixation
- Fermentation
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SECTION-B
- Describe briefly principle of bright field and dark field microscopy.
- Describe the chemical structure of cell wall of bacteria.
- How microbes survive in extreme environments? Explain.
- Describe briefly host defence mechanism against pathogens.
- Describe briefly types of microbial pathogens of humans and diseases caused by them.
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SECTION-C
- What is sterilization? Describe the physical and chemical methods of sterilization. Also highlight advantages and disadvantages in each case.
- What are heterologous proteins? Describe the production of heterologous proteins in microbes with suitable examples.
- Give a brief account of characteristics of bacteria, fungi and algae.
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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.Sc (Biotechnology) 2020 March Previous Question Papers