BT503 Current MCQs and Subjective

MCQS

1. Natural estrogens deactivated by .................... Glucuronidation
2. Insect virus that causes over expression of genes in molecular biology .................... baculo virus
3. . Acute toxins.................... All
4. By using recombinant technologies scientists are now producing .................... Insulin
5. are combustible materials, containing within themselves all oxygen needful for their combustion, which burn but do not explode, and function by producing gas which produces an explosion… .......... Propellants or low explosives
6. are types of waste stabilization pond used for biological treatment of industrial and domestic wastewater .............. Facultative lagoon
7. PAH-containing fractions, by animal test systems ............................ evidence have been obtained that PAH containing ................ (skin painting, lung implantation)
8. Pentane is utilized as a ……………in the preparation of phenol ................... foaming
9. Polystyrene, as a propellant for aerosol sprays, as a filling of low-temperature thermometers, and as reference compound in gas chromatography.
10. Herbicide resistant plants ..................... pests
11. Average temperature of ocean… ............... 1–3°C
12. Which of ....does not use to make vessel of biofilters .... (may be formic sheet)
13. Which of the following is not fate of water ...... (may be generation of aerosol )
14. Which of the following does not classify as a substitution material ........... (other than those

options) materials is a major potential avenue for the environmental biotechnology

15. Which of the following statement about desulphurization of oil and coal is false ......(See the ppt

page no 390 to 400)

16. Metals are released into the environment by all of the following except

(Earthquake)

17. When facultative pond receives raw sewage they are called ....... ponds.

(primary pond)

18. Which of the following is not linked to biomagnifications
19. Why frogs are helpful as bioindicators ...... Frogs are also Bioindicators; influenced by
20. For land base application soil type best suited to biotechnological intervention are. ......... (Sand

and gravel)

21. Attack by insect not only cause damage to the plant but also provide route. ............ for bacterial

or fungal infection

22. Insertion of foreign DNA in the vector resulting in the loss of the future.

(marker gene)

23. Methogenic contortion of over 100 bacterial clone with the capability to digest ...
24. Preliminary treatment involves the removal of coarse……… solids ............... only
25. Due to continuous arrival of food in the form of BOD to the aeration tank, bacteria grow and reproduce continuously. If an indefinite population growth

BT503 Final + Mid Current Solved

Mid Term Mcqs

26. Septic tanks are also a form of ,,,,,,,,,primary ,,,,,,,,,,treatment
27. Mere a gene is one of a ………………..cluster..................... of genes involved in bacterial detoxification of mercury, and is the one coding for the enzyme, mercuric ion reeducates, which converts mercury from an ionic to a volatile form
28. Facultative ponds which receive raw sewage is also known as................. primary ponds
29. Facultative ponds which receive raw sewage is also known as primary ponds ...... Retention by

the plants

30. In the Inhofe tank, settling occurs in the… ............................ upper compartment
31. Second strategy is usually ...................................... plasmid
32. Fundamental requirements are ......................... all of given above
33. Attack by insects is cause……micrococcus lentos
34. Na+/H+ antiport, ….the transport of sodium and hydrogen ions …in opposite directions across a membrane
35. Frog are bio indicator by .......... Change in fresh and terrestrial
36. For higher efficiencies of phosphorus removal, effluent polishing methods can adopted:

Addition of coagulants · (Metallic ions): · Phosphorus precipitation

Effluent filtration: removal of the phosphorus present in the suspended solids in the effluent

Combination of the addition of coagulants and filtration

37. Wastewater is applied to the soil, supplying water and nutrients necessary for plant growth.
38. Bio filter consists of a relatively large vessel or container, typically made of cast concrete, metal

or durable plastic

39. The metals released in air by the processes of weathering, erosion and volcanic activity
40. The nature of the soil or water which harbors the pollution can have a major effect on the actual expressed end-result.
41. Zooplanktons are microscopic animals living near to the surface of the water body. They are poor swimmers, instead relying on tides and currents as a transport mechanism. They feed upon phytoplanktons, bacterioplanktons, or detritus (i.e. marine snow).
42. Phytoplanktons, also known as microalgae, are similar to terrestrial plants in that they contain chlorophyll and require daylight to live and develop.
43. Mere a gene is one of a cluster of genes involved in bacterial detoxification of mercury, and is the one coding for the enzyme, mercuric ion reeducates, which converts mercury from an ionic to a volatile form.
44. The insect virus, Baculovirus, has been shown to be the method of choice for the over expression of genes in many applications of molecular biology.
45. A strain of Pseudomonas putrid known to degrade PCBs
46. Facultative ponds which receive raw sewage is also known as primary ponds
47. Bio substitution are: Biofuels, Polymers, Biodegradable
48. septic tank can be a single-chamber tank or a two-compartment tank (called an Imhoff tanks).
49. In the Imhoff tank, settling occurs in the upper compartment (settling compartment).
50. In the soil, a pollutant has basically four possible destinations: retention in the soil matrix, retention by the plants, appearance in the underground water,

collection by underdrains

51. Facultative ponds which receive raw sewage is also known as primary ponds
52. A strain of Pseudomonas putida known to

degrade PCBs

53. Which of does not use to make vessel of biofilters ........................................ (may be formic

sheet)

54. Which of the following is not fate of water ........................................ (may be generation of

aerosol)

55. Which of the following does not classify as a substitution material .................... (other than

those options) materials is a major potential avenue for the environmental biotechnology

56. Which of the following statement about desulphurization of oil and coal is false ................ (See

the ppt page no 390 to 400)

57. Metals are released into the environment by all of the following except .............. (Earthquake)
58. When facultative pond receive raw sewage they are called ponds .......................... (Primary

pond)

59. Which of the following is not linked to biomagnifications …(other than those) • long-lived, • mobile, • soluble in fats, • biologically active.
60. Why frogs are helpful as bioindicators … Frogs are also Bioindicators; influenced by
61. For land base application soil type best suited to biotechnological intervention are

(Sand and gravel)

62. The septic tank can be a single-chamber tank or a two-compartment tank (called an

Inhofe tank).

63. In the Inhofe tank, settling occurs in the upper compartment (settling compartment).
64. Attack by insect not only cause damage to the plant but also provide route … for bacterial or

fungal infection

65. Insertion of foreign DNA in the vector resulting in the loss of the future ................. (marker

gene)

66. Methogenic contortion of over 100 bacterial clone with the capability to digest

Short Question

What is the bio indicator?

screen the health of the natural ecosystem in the environment. The expression ‘Bioindicator’ is used as an aggregate term referring to all sources of biotic and abiotic reactions to ecological changes. They are used for assessing environmental health and biogeographic changes taking place in the environment e.g.,