Download PTU B-Tech Bio Technology 2020 Dec 4th Sem 77591 Environmental Biotechnology Question Paper

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Roll No. | | Total No. of Pages : 02
Total No. of Questions : 18

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B.Tech. (BT) (2018 Batch) (Sem.-4)
ENVIRONMENTAL BIOTECHNOLOGY
Subject Code : BTBT-408-18
M.Code : 77591
Time : 3 Hrs. Max. Marks : 60

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt any FOUR questions.
3. 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 :

1. What is activated sludge process in waste water treatment?
2. What are the characteristics of wastewater?
3. What do you understand by recalcitrance? Give specific examples.
4. What are Xenobiotic compounds? Give examples.

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5. Explain the difference between In-Situ and Ex-Situ conservation.
6. What is Biotransformation? Give examples of it.
7. What are Catalytic Antibodies?
8. What do you understand by Phytoremediation?
9. Define Biopesticides. Substantiate with examples.

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10. What are Degradative Plasmids?

SECTION-B

11. Describe the working principal of anaerobic sludge blanket reactor and also explain the design criteria. Draw a flow sheet of it.
12. Explain the process of microbial degradation of halogenated and sulfonated compounds.
13. Explain in detail the methods of germplasm conservation.

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14. Describe the mechanism of biohydrogen production and its role as a potential biofuel.
15. Explain the kinetics and thermodynamic of microbial process during the transformation of environmental contaminants.

SECTION-C

16. What is Bioremediation? Explain how micro-organisms play an important role in the restoration of soils contaminated with heavy metals?
17. Write explanatory notes on :
    1. Fluidized Expanded bed reactor

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    2. Bioaugmentation
18. What do you understand by Composting? Describe the various composting technologies of organic waste.

NOTE : Disclosure of Identity by writing Mobile No. or Marking of passing request on any paper of Answer Sheet will lead to UMC against the Student.

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