BSc Biochemistry Sem VI 2022 2023 Apr 2023 BIOTECH ENVIRONMENTAL BIOTECHNOLOGY Question Paper - Mumbai University | munotes

Questions asked in this paper

• 1. Attempt all questions

1. Q2 All questions carry equal marks
2. Q4 Use of log tables and non-programmable calculator is allowed Explain the following terms: (Any six) 06 is a device used to
   • (a) Produce electricity b) Store biogas c) Produce biogas d) Clean the air)
3. Q2 energy is an example of energy
4. Q3 is produced by the fermentation of
   • (a) sugar and starch b) cellulose and lignin c) protein and fat d) water and
5. Q4 energy is derived from the of the earth
6. Q5 Hydropower is generated by harnessing the energy of
   • (a) the sun b) the wind c) flowing water d) the earth's heat)
7. Q6 primary ingredient for biodiesel production is
8. Q7 of the following is a source of ethanol production?
9. Q8 Which renewable energy source is used to turn wind turbines and generate
10. Q9 Microbial hydrogen production involves the use of
11. Q1 b. Answer the following questions: (Any Two) 14 marks
12. Q1 What are the factors that affect the production of biogas
13. Q2 Describe the different stages involved in the production of ethanol
14. Q3 Elaborate on hydrogen as a renewable fuel Doas instructed: (Any six) 06 mediterranean mussel was used successfully to monitor
15. Q2 present in aqueous wastes can be effectively detoxified
16. Q3 has also been used to determine methanogens in samples from an anaerobic digester
17. Q4 Sequestration by in bacteria is one of the mechanisms for detoxification of heavy metals
    • c. glutathione d. ethoxyresofurin
18. Q5 has been used as a bioindicator for the contamination of the atmosphere by heavy metals
19. Q6 Chemical property of xenobiotic compounds which influence their
    • a.Lack of Lack of c.Lackofsulphur d. lack of
20. Q7 marker gene from eukaryotes which can be used as a genetic indicator for monitoring of pollution
21. Q8 In BOD sensor a microbial film is sandwiched between a porous membrane and the oxygen - permeable membrane of a Clark electrode
22. Q9 Vibrio fischeri was used to screen the effect of Discuss the following questions: (Any Two) 14
23. Q1 Any two methods of anaerobic biological treatment of wastewater
24. Q2 Biosensors with suitable examples
25. Q3 Non- hazardous solid wastes- methods used in treatment and disposal
26. Q3 a. Doas directed: (Any Six) Select the correct alternative 6 marks
27. Q1 Energy is generated during of inorganic compounds by autotrophs
    • a) Reduction b) Dehydrogenation
    • c) Polymerization d) Oxidation
28. Q2 means the processes by cells or biomass which is metabolically not
29. Q3 Trichoderma viride immobilized in china clay in columns can be used to remove from effluent buffered at pH 5.5
30. Q4 was the most toxic cadmium salt
    • a) Cd(NO3)2 b)
31. Q5 system allows effluents to pass through engineered channels that
    • a) Meander d) Linear State True or False
32. Q6 Extracellular enzymes attack only those substrate molecules which can get transported into the cell
33. Q7 aeruginosa immobilized on reticulated foam can be used for removal of cadmium with 99 % efficiency Answer the following
34. Q9 Give any one major source of heavy metal pollution Answer the following: (Any Two) 14
35. Q1 Elaborate on - Use of bacteria in biosorption with suitable examples
36. Q2 Describe the impact of pollutants on biotreatment
37. Q3 Explain the advantages, constraints and potential applications in the use of
38. Q4 a. Doas directed: (Any six) Select the correct alternative 6 marks
39. Q1 is a major atmospheric pollutant that contributes to the formation of acid rain precipitation and acid smog
    • a) NO2 d) H2S
40. Q2 Polishing pond helps to reduce TSS and
41. Q3 The most extensively characterized alkane degradation pathway is encoded by the plasmid
42. Q4 Use of minimizes oil sorption to sediments and organisms Answer the following
43. Q5 Give any one example of mechanical pulping processes
44. Q6 Give any one type of natural resin acids
45. Q7 any one use of aboveground bioreactors
46. Q8 Give one example of the solid support media used in fixed film bioreactor
47. Q9 Define - Chamoising
48. Q4 b. Answer the following questions: (Any Two) 14 marks
49. Q1 Explain in detail - Single phase anaerobic treatment of dairy effluents
50. Q2 Describe the characteristic features of petroleum waste
51. Q3 Elaborate on - Chemical methods used for waste treatment in pharmaceutical
52. Q5 Short notes on the following (Any four) 20 marks
    • a. Biomass energy
    • b. Pollution indicators
    • c. Advantages of biosorptive processes
    • d. Microbial systems used for heavy metal accumulation
    • e. Phytoremediation by aquatic weeds
    • f. Steam stripping and steam stripping with rectification

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