M. Sc Environmental Science (Semester III) (CBCS)
Examination, 2017
ENVIRONMENTAL BIOTECHNOLOGY
WateriI
Day Date: Thursday, 20-04-2017 Max. Marks: 70
Time: 02.30 PM to 05.00 PM
N.B. Answer any five questions.
Questions NO.1 Compulsory.
Attempt any two questions from.2,3 to 4
Attempt any two questions from 5,6 to 7
Figures to the right indicate full marks.
Draw neat and labeled diagrams wherever necessary.
Q.1 Choose the correct alternative given in the bracket. 14
The biological sequestering of substance at a higher
concentration than that occurs in surrounding or medium or
medium is called
Biomagnifications Biotransformation
Bioaccumulation All of these
2 Among the following of Chromium is very toxic.
Monovalent Trivalent
Hexavalent None of the above
3 Venoms are in nature.
Carbohydrates Proteins
Lipids Acids
4 Two bacteria found to be useful in genetic engineering
experiments are
Nitrobacter and Azatobacter
Rhizobium and Diplococcus
Nitrosomonas and Kleibsiella
Escherichia coli and Agrobacterium
5 Which of the following bacteria is called as superbug which
could clean up the oil?
Bacillus subtilus Pseudomonas putida
Pseudomonas denitrificans Bacillus denitrificans
6 Bactria used in Biogas fermentation
Halophiles Methanogens h
Cynobacyeria Vibrio bacteria
7 First cloned animal was
Page 2 of 3
Dolly sheep Dog Mule Cat
8 which of the bacteria is considered for biological leaching?
T. thiooxidans T. ferrooxidans
Ferrobacillus terrooixdans All of these
9 Golden Rice is a transgenic crop of the future with the
following improved trait
Insect resistance High protein content
High Vitamin A content High lysine content
1 Which of the following organisms are used as components of
biofertilisers?
Blue green algae only
Coliform bacteria and mushrooms
fixing bacteria only
Blue green algae and fixing bacteria
1 Which of the following is useful biological indicator of Sulphur
dioxide pollution?
Bryophytes Algal Blooms
Pseudomonas Lichens
1 are human-made chemicals that present in the
environment at unnaturally high concentrations.
Xenobiotic compound Aliphatic compound
Aromatic compound Natural compound
1 is an example of fungal biopesticides.
Trichoderma sp. Thuringiensis
E. coli None of the above
1 Bacteria are classified on the basis of
Method of reproduction Nucleus d
Cell wall Pigments
Q.2 Give an account on nature and functions of microorganisms in soil
environment.
14
Q.3 Discuss in detail Phytoremediation technology for soli
decontamination as well as for waste water treatment
14
Q.4 Explain in detail about scope of environmental biotechnology in
environmental science.
14
Q.5 Write short note on. 14
Sequestrating Carbon dioxide
Transgenic plants
0
Q.6 Explain in brief: 14
Degradation of Xenobiotic compounds
Microbial growth and energy
Q.7 Write an account on: 14
Superbug
Structure and function of prokaryotic cell