What do you mean by ‘scale-down’?
Anonymous Quiz
72%
Decreasing the scale of fermentation
22%
Increasing the scale of fermentation
0%
Decreasing the rate of agitation
6%
Increasing the rate of fermentation
Which of the following fermentation is carried out by yeast?
Anonymous Quiz
50%
Lactic acid fermentation
46%
Alcohol fermentation
4%
Pyruvic fermentation
0%
Acrylic fermentation
Which of the following is used to pack columns in adsorption chromatography?
Anonymous Quiz
32%
Carbon
53%
Silica gel
11%
Potassium hydroxide
5%
Aluminium oxide
😱1
Which of the following stationary phase is not used in gel filtration chromatography?
Anonymous Quiz
35%
Sephadex
15%
Sephacryl
35%
Bio-Gel
15%
Resin beads
Chromatography is used to separate ____________
Anonymous Quiz
73%
Complex mixture compounds
23%
Simple mixtures
5%
Viscous mixtures
0%
Halogens
The Rf value is the ratio of distance travelled by solvent to the distance travelled by the solute.
Anonymous Quiz
76%
True
24%
False
Which of the following is not a factor to investigate in a site survey?
Anonymous Quiz
35%
BOD/COD
24%
Sterility
12%
Colour
29%
Radioactivity
Which of the following is a primary treatment?
Anonymous Quiz
48%
Sedimentation
29%
Activated sludge
14%
Sand filters
10%
Microstrainers
Which is the use of comminutors?
Anonymous Quiz
65%
To reduce the size of particles
12%
To remove the grit
18%
To remove large particles
6%
To remove small particles
Which of the following is used to grow anchorage-dependent cells?
Anonymous Quiz
18%
Airlift fermenter
36%
Tower fermenter
27%
Hollow fibre chamber
18%
Perfusion bioreactor
Which of the following bioreactor consists of a vessel replaced by a multilayered bag?
Anonymous Quiz
55%
Single Use bioreactors
27%
Perfusion bioreactors
18%
Airlift bioreactor
0%
Tower bioreactor
What is the function of carbon in stainless steel?
Anonymous Quiz
73%
Improves resistance to corrosion
9%
Improves ductility
9%
Reduces sensitization
9%
Improves halogen resistance
Which of the following class consists of microorganisms which are not causative agents?
Anonymous Quiz
56%
EFB Class 1
44%
EFB Class 2
0%
EFB Class 3
0%
EFB Class 4
Which of the following class of microorganisms causes less threat to a man?
Anonymous Quiz
58%
Low-risk microorganisms
8%
High-risk microorganisms
8%
Medium-risk microorganisms
25%
Environmental-risk microorganisms
Which of the following regulates gas flow electronically?
Anonymous Quiz
29%
Rotameter
29%
MFC
29%
Centrifuge
14%
Incubator